Step 1: Divide the number into separate digits:
44269 => 4 4 2 6 9
Step 2: Calculate the distance between each digit and the next (the last digit with the first):
4 to 4 = 0
4 to 2 = 2
2 to 6 = 4
6 to 9 = 3
9 to 4 = 5
Step 3: Combine the filters to a string:
0 2 4 3 5 = 02435