Step 1: Divide the number into separate digits:
30460 => 3 0 4 6 0
Step 2: Calculate the distance between each digit and the next (the last digit with the first):
3 to 0 = 3
0 to 4 = 4
4 to 6 = 2
6 to 0 = 6
0 to 3 = 3
Step 3: Combine the filters to a string:
3 4 2 6 3 = 34263