Step 1: Divide the number into separate digits:
62280 => 6 2 2 8 0
Step 2: Calculate the distance between each digit and the next (the last digit with the first):
6 to 2 = 4
2 to 2 = 0
2 to 8 = 6
8 to 0 = 8
0 to 6 = 6
Step 3: Combine the filters to a string:
4 0 6 8 6 = 40686