Prayed on a regular 59 bead Marian Rosary.  (Skip the first Our Father Bead.)  Rosary with Divine Medal and 58 beads available in Devotional Chaplet Store

Begin by doing the sign of the cross on the crucifix (or Divine Mercy medal)

(Optional Opening Prayer)
You expired, Jesus, but the source of life gushed forth for souls, and the ocean of mercy opened up for the whole world. O Fount of Life, unfathomable Divine Mercy, envelop the whole world and empty Yourself out upon us.

(Repeat three times)
O Blood and Water, which gushed forth from the Heart of Jesus as a fountain of Mercy for us, I trust in You!

On the first bead of the set of three pray the Our Father

Our Father, Who art in Heaven, Hallowed be Thy name.  Thy Kingdom come, Thy will be done on Earth as it is in Heaven.  Give us this day our daily bread, and forgive us our trespasses, as we forgive those who trespass against us, and lead us not into temptation, but deliver us from evil.   Amen.

On the second bead of the set of three pray the Hail Mary

Hail Mary, full of grace, the Lord is with Thee.  Blessed art Thou among women and blessed is the fruit of Thy womb, Jesus.  Holy Mary, Mother of God, pray for us sinners now and at the hour of our death.  Amen.

On the third bead of the set of three pray the Apostles' Creed

I believe in God the Father Almighty, Creator of Heaven and Earth, and in Jesus Christ, His only Son, our Lord, who was conceived by the Holy Spirit, born of the Virgin Mary, suffered under Pontius Pilate, was crucified, died and was buried.  He descended into hell.  The third day He rose again from the dead.  He ascended into Heaven and sits at the right hand of God the Father Almighty.  From there He shall come to judge the living and the dead. 

I believe in the Holy Spirit, the Holy Catholic Church, the communion of Saints, the forgiveness of sins, the resurrection of the body and life everlasting.  Amen.

On each Our Father bead pray

Eternal Father, I offer You the body and blood, soul and divinity of Your dearly beloved Son, our Lord Jesus Christ, in atonement for our sins and those of the whole world.

On each Hail Mary bead pray

For the sake of His sorrowful Passion, have mercy on us and on the whole world.

Finish the chaplet by praying the following prayer three times

Holy God, Holy Mighty One, Holy Immortal One, have mercy on us and on the whole world.

(Optional Closing Prayer)
Eternal God, in Whom mercy is endless and the treasury of compassion inexhaustible, look kindly upon us, and increase Your mercy in us, that in difficult moments, we might not despair nor become despondent, but with great confidence, submit ourselves to Your holy will, which is love and mercy itself.  Amen.