Step 1: Divide the number into separate digits:
96219 => 9 6 2 1 9
Step 2: Calculate the distance between each digit and the next (the last digit with the first):
9 to 6 = 3
6 to 2 = 4
2 to 1 = 1
1 to 9 = 8
9 to 9 = 0
Step 3: Combine the filters to a string:
3 4 1 8 0 = 34180