We look at the division of 20917491 by 107 
The aim is to understand the frequency of 107 in 20917491.

Let's proceed to step 1:
When dividing 2 by 107, we get 0 with a remainder of 2.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 2 to get 2.
Include the next digit (0) from the dividend after 2, then repeat: 20 / 107

Advancing to step 2:
107 can be fit into 20 0 times, resulting in a remainder of 20.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 20 to get 20.
Grab the next digit (9) from the dividend, add it to 20, then carry on: 209 / 107

Advancing to step 3:
If we divide 209 by 107, we get 1 and a remainder of 102.
The next digit of our result is 1. 
Result so far: 1.0
Deduct 107 from 209 and we're left with 102.
Bring next digit (1) of the dividend behind the 102 and repeat the process: 1021 / 107

Advancing to step 4:
107 goes into 1021 9 times with a remainder of 58.
The next digit of our result is 9. 
Result so far: 19.0
Deduct 963 from 1021 and we're left with 58.
Fetch the next digit (7) from the dividend, attach it to 58 and continue: 587 / 107

Step 5:
107 goes into 587 5 times with a remainder of 52.
Record the quotient 5 as the next digit in the result. 
Result so far: 195.0
The remainder is 52 after subtracting 535 from 587.
Fetch the next digit (4) from the dividend, attach it to 52 and continue: 524 / 107

Advancing to step 6:
524 divided by 107 is 4 with a remainder of 96.
Write down 4 as next digit of the result. 
Result so far: 1954.0
If we subtract 428 from 524, we get 96.
Include the next digit (9) from the dividend after 96, then repeat: 969 / 107

Let's proceed to step 7:
If we divide 969 by 107, we get 9 and a remainder of 6.
The number 9 becomes the next digit in our result. 
Result so far: 19549.0
Deduct 963 from 969 and we're left with 6.
Include the next digit (1) from the dividend after 6, then repeat: 61 / 107

Moving on to step 8:
107 can be fit into 61 0 times, resulting in a remainder of 61.
The number 0 becomes the next digit in our result. 
Result so far: 195490.0
Subtracting 0 from 61 leaves us with 61.
Since there are no more digits in the dividend, we add a zero to the remainder making it 610, and continue the process.

Moving on to step 9:
107 goes into 610 5 times with a remainder of 75.
The next digit of our result is 5. 
Result so far: 195490.5
If we take 535 away from 610, we end up with 75.
Since there are no more digits in the dividend, we add a zero to the remainder making it 750, and continue the process.

Moving on to step 10:
The number 107 fits into 750 7 times, leaving a remainder of 1.
The next digit of our result is 7. 
Result so far: 195490.57
Subtracting 749 from 750 leaves us with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Going ahead to step 11:
107 goes into 10 0 times with a remainder of 10.
Record the quotient 0 as the next digit in the result. 
Result so far: 195490.57
Deduct 0 from 10 and we're left with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Step 12:
When dividing 100 by 107, we get 0 with a remainder of 100.
The number 0 becomes the next digit in our result. 
Result so far: 195490.57
Subtracting 0 from 100 leaves us with 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

The quotient of the division is 195490.57, and the remainder is 0.001.