Step 1: Divide the number into separate digits:
62174 => 6 2 1 7 4
Step 2: Calculate the distance between each digit and the next (the last digit with the first):
6 to 2 = 4
2 to 1 = 1
1 to 7 = 6
7 to 4 = 3
4 to 6 = 2
Step 3: Combine the filters to a string:
4 1 6 3 2 = 41632