Step 1: Divide the number into separate digits:
12482 => 1 2 4 8 2
Step 2: Calculate the distance between each digit and the next (the last digit with the first):
1 to 2 = 1
2 to 4 = 2
4 to 8 = 4
8 to 2 = 6
2 to 1 = 1
Step 3: Combine the filters to a string:
1 2 4 6 1 = 12461