Step 1: Divide the number into separate digits:
45928 => 4 5 9 2 8
Step 2: Calculate the distance between each digit and the next (the last digit with the first):
4 to 5 = 1
5 to 9 = 4
9 to 2 = 7
2 to 8 = 6
8 to 4 = 4
Step 3: Combine the filters to a string:
1 4 7 6 4 = 14764