91618906 ÷ 908 
The aim is to understand the frequency of 908 in 91618906.

On to step 1:
9 divided by 908 is 0 with a remainder of 9.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 9, we get 9.
Bring next digit (1) of the dividend behind the 9 and repeat the process: 91 / 908

Moving on to step 2:
91 divided by 908 is 0 with a remainder of 91.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 91 leaves us with 91.
Include the next digit (6) from the dividend after 91, then repeat: 916 / 908

On to step 3:
The number 908 fits into 916 1 times, leaving a remainder of 8.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Deduct 908 from 916 and we're left with 8.
Bring next digit (1) of the dividend behind the 8 and repeat the process: 81 / 908

On to step 4:
81 divided by 908 is 0 with a remainder of 81.
Put 0 as the next digit of the answer. 
Result so far: 10.0
Subtracting 0 from 81 leaves us with 81.
Grab the next digit (8) from the dividend, add it to 81, then carry on: 818 / 908

Step 5:
If we divide 818 by 908, we get 0 and a remainder of 818.
Record the quotient 0 as the next digit in the result. 
Result so far: 100.0
Subtract 0 from 818 to get 818.
Append the next digit (9) from the dividend to 818 and continue with: 8189 / 908

Let's proceed to step 6:
8189 divided by 908 is 9 with a remainder of 17.
Put 9 as the next digit of the answer. 
Result so far: 1009.0
If we subtract 8172 from 8189, we get 17.
Append the next digit (0) from the dividend to 17 and continue with: 170 / 908

Let's proceed to step 7:
908 goes into 170 0 times with a remainder of 170.
Write down 0 as next digit of the result. 
Result so far: 10090.0
Subtracting 0 from 170 leaves us with 170.
Fetch the next digit (6) from the dividend, attach it to 170 and continue: 1706 / 908

Step 8:
908 goes into 1706 1 times with a remainder of 798.
The number 1 becomes the next digit in our result. 
Result so far: 100901.0
Deduct 908 from 1706 and we're left with 798.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7980, and continue the process.

Advancing to step 9:
7980 divided by 908 is 8 with a remainder of 716.
Write down 8 as next digit of the result. 
Result so far: 100901.8
Subtract 7264 from 7980 to get 716.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7160, and continue the process.

Step 10:
If we divide 7160 by 908, we get 7 and a remainder of 804.
The number 7 becomes the next digit in our result. 
Result so far: 100901.87
If we take 6356 away from 7160, we end up with 804.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8040, and continue the process.

Moving on to step 11:
When dividing 8040 by 908, we get 8 with a remainder of 776.
Record the quotient 8 as the next digit in the result. 
Result so far: 100901.878
Deduct 7264 from 8040 and we're left with 776.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7760, and continue the process.

Moving on to step 12:
908 can be fit into 7760 8 times, resulting in a remainder of 496.
The number 8 becomes the next digit in our result. 
Result so far: 100901.8788
Deduct 7264 from 7760 and we're left with 496.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4960, and continue the process.

The final outcome is 100901.8788, with a leftover of 0.00496.