Step 1: Divide the number into separate digits:
92771 => 9 2 7 7 1
Step 2: Calculate the distance between each digit and the next (the last digit with the first):
9 to 2 = 7
2 to 7 = 5
7 to 7 = 0
7 to 1 = 6
1 to 9 = 8
Step 3: Combine the filters to a string:
7 5 0 6 8 = 75068