Step 1: Divide the number into separate digits:
93564 => 9 3 5 6 4
Step 2: Calculate the distance between each digit and the next (the last digit with the first):
9 to 3 = 6
3 to 5 = 2
5 to 6 = 1
6 to 4 = 2
4 to 9 = 5
Step 3: Combine the filters to a string:
6 2 1 2 5 = 62125