Step 1: Divide the number into separate digits:
44772 => 4 4 7 7 2
Step 2: Calculate the distance between each digit and the next (the last digit with the first):
4 to 4 = 0
4 to 7 = 3
7 to 7 = 0
7 to 2 = 5
2 to 4 = 2
Step 3: Combine the filters to a string:
0 3 0 5 2 = 03052