Step 1: Divide the number into separate digits:
37883 => 3 7 8 8 3
Step 2: Calculate the distance between each digit and the next (the last digit with the first):
3 to 7 = 4
7 to 8 = 1
8 to 8 = 0
8 to 3 = 5
3 to 3 = 0
Step 3: Combine the filters to a string:
4 1 0 5 0 = 41050