Step 1: Divide the number into separate digits:
94797 => 9 4 7 9 7
Step 2: Calculate the distance between each digit and the next (the last digit with the first):
9 to 4 = 5
4 to 7 = 3
7 to 9 = 2
9 to 7 = 2
7 to 9 = 2
Step 3: Combine the filters to a string:
5 3 2 2 2 = 53222