Step 1: Divide the number into separate digits:
82966 => 8 2 9 6 6
Step 2: Calculate the distance between each digit and the next (the last digit with the first):
8 to 2 = 6
2 to 9 = 7
9 to 6 = 3
6 to 6 = 0
6 to 8 = 2
Step 3: Combine the filters to a string:
6 7 3 0 2 = 67302