Step 1: Divide the number into separate digits:
55234 => 5 5 2 3 4
Step 2: Calculate the distance between each digit and the next (the last digit with the first):
5 to 5 = 0
5 to 2 = 3
2 to 3 = 1
3 to 4 = 1
4 to 5 = 1
Step 3: Combine the filters to a string:
0 3 1 1 1 = 03111