Step 1: Divide the number into separate digits:
41829 => 4 1 8 2 9
Step 2: Calculate the distance between each digit and the next (the last digit with the first):
4 to 1 = 3
1 to 8 = 7
8 to 2 = 6
2 to 9 = 7
9 to 4 = 5
Step 3: Combine the filters to a string:
3 7 6 7 5 = 37675