Step 1: Divide the number into separate digits:
94868 => 9 4 8 6 8
Step 2: Calculate the distance between each digit and the next (the last digit with the first):
9 to 4 = 5
4 to 8 = 4
8 to 6 = 2
6 to 8 = 2
8 to 9 = 1
Step 3: Combine the filters to a string:
5 4 2 2 1 = 54221