The Divine Mercy Novena begins on Good Friday, and the Chaplet is said each day of the Novena. The Chaplet is said in this way:
1. Begin with the Sign of the Cross, 1 Our Father, 1 Hail Mary and The Apostles Creed.
2. Then on the Our Father Beads say the following:
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.
3. On the 10 Hail Mary Beads say the following:
For the sake of His sorrowful Passion, have mercy on us and on the whole world.
(Repeat step 2 and 3 for all five decades).
4. Conclude with(three times):
Holy God, Holy Mighty One, Holy Immortal One, have mercy on us and on the whole world.
The intentions of each day are as follows:
DAY 1 (Good Friday) - All mankind, especially sinners.
DAY 2 (Holy Saturday) - The souls of priests and religious.
DAY 3 (Easter Sunday) - All devout and faithful souls.
DAY 4 (Easter Monday) - Those who do not believe in Jesus and those who do not yet know Him.
DAY 5 (Easter Tuesday) - The souls of separated brethren.
DAY 6 (Easter Wednesday) - The meek and humble souls and the souls of children.
DAY 7 (Easter Thursday) - The souls who especially venerate and glorify Jesus' mercy.
DAY 8 (Easter Friday) - The souls who are detained in purgatory.
DAY 9 (Easter Saturday) - The souls who have become lukewarm.
The full prayers for the Novena intentions are at this link.