There are 6 of them in all. In the order given, are the numbers they receive.
16 x 6 = 96
At first, each of them receives the same amount of stickers, 16, which, when multiplied with the amount there is, equals 96.
This leaves 4 left.
In the order starting from the first (Aaron), it is:
Aaron, Cathy, Esther, Ginny, etc
Ginny is the person to receive the last sticker
hope this helps