Step 1: Divide the number into separate digits:
29060 => 2 9 0 6 0
Step 2: Calculate the distance between each digit and the next (the last digit with the first):
2 to 9 = 7
9 to 0 = 9
0 to 6 = 6
6 to 0 = 6
0 to 2 = 2
Step 3: Combine the filters to a string:
7 9 6 6 2 = 79662