Step 1: Divide the number into separate digits:
85229 => 8 5 2 2 9
Step 2: Calculate the distance between each digit and the next (the last digit with the first):
8 to 5 = 3
5 to 2 = 3
2 to 2 = 0
2 to 9 = 7
9 to 8 = 1
Step 3: Combine the filters to a string:
3 3 0 7 1 = 33071