Step 1: Divide the number into separate digits:
49382 => 4 9 3 8 2
Step 2: Calculate the distance between each digit and the next (the last digit with the first):
4 to 9 = 5
9 to 3 = 6
3 to 8 = 5
8 to 2 = 6
2 to 4 = 2
Step 3: Combine the filters to a string:
5 6 5 6 2 = 56562