Step 1: Divide the number into separate digits:
01460 => 0 1 4 6 0
Step 2: Calculate the distance between each digit and the next (the last digit with the first):
0 to 1 = 1
1 to 4 = 3
4 to 6 = 2
6 to 0 = 6
0 to 0 = 0
Step 3: Combine the filters to a string:
1 3 2 6 0 = 13260