Step 1: Divide the number into separate digits:
44954 => 4 4 9 5 4
Step 2: Calculate the distance between each digit and the next (the last digit with the first):
4 to 4 = 0
4 to 9 = 5
9 to 5 = 4
5 to 4 = 1
4 to 4 = 0
Step 3: Combine the filters to a string:
0 5 4 1 0 = 05410