Let's divide 18537577 by 109
The aim is to understand the frequency of 109 in 18537577.

Advancing to step 1:
If we divide 1 by 109, we get 0 and a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 1, we end up with 1.
Grab the next digit (8) from the dividend, add it to 1, then carry on: 18 / 109

Going ahead to step 2:
When dividing 18 by 109, we get 0 with a remainder of 18.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 18 leaves us with 18.
Grab the next digit (5) from the dividend, add it to 18, then carry on: 185 / 109

Advancing to step 3:
The number 109 fits into 185 1 times, leaving a remainder of 76.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
The remainder is 76 after subtracting 109 from 185.
Include the next digit (3) from the dividend after 76, then repeat: 763 / 109

On to step 4:
If we divide 763 by 109, we get 7 and a remainder of 0.
Record the quotient 7 as the next digit in the result. 
Result so far: 17.0
If we subtract 763 from 763, we get 0.
Fetch the next digit (7) from the dividend, attach it to 0 and continue: 7 / 109

Step 5:
The number 109 fits into 7 0 times, leaving a remainder of 7.
The number 0 becomes the next digit in our result. 
Result so far: 170.0
The remainder is 7 after subtracting 0 from 7.
Bring next digit (5) of the dividend behind the 7 and repeat the process: 75 / 109

Going ahead to step 6:
If we divide 75 by 109, we get 0 and a remainder of 75.
Record the quotient 0 as the next digit in the result. 
Result so far: 1700.0
The remainder is 75 after subtracting 0 from 75.
Grab the next digit (7) from the dividend, add it to 75, then carry on: 757 / 109

Advancing to step 7:
757 divided by 109 is 6 with a remainder of 103.
The next digit of our result is 6. 
Result so far: 17006.0
The remainder is 103 after subtracting 654 from 757.
Fetch the next digit (7) from the dividend, attach it to 103 and continue: 1037 / 109

Moving on to step 8:
When dividing 1037 by 109, we get 9 with a remainder of 56.
Put 9 as the next digit of the answer. 
Result so far: 170069.0
Deduct 981 from 1037 and we're left with 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Step 9:
109 goes into 560 5 times with a remainder of 15.
The next digit of our result is 5. 
Result so far: 170069.5
Deduct 545 from 560 and we're left with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Advancing to step 10:
The number 109 fits into 150 1 times, leaving a remainder of 41.
The number 1 becomes the next digit in our result. 
Result so far: 170069.51
If we subtract 109 from 150, we get 41.
Since there are no more digits in the dividend, we add a zero to the remainder making it 410, and continue the process.

Advancing to step 11:
When dividing 410 by 109, we get 3 with a remainder of 83.
Use 3 as the next digit of our solution. 
Result so far: 170069.513
Deduct 327 from 410 and we're left with 83.
Since there are no more digits in the dividend, we add a zero to the remainder making it 830, and continue the process.

Going ahead to step 12:
109 can be fit into 830 7 times, resulting in a remainder of 67.
The next digit of our result is 7. 
Result so far: 170069.5137
If we take 763 away from 830, we end up with 67.
Since there are no more digits in the dividend, we add a zero to the remainder making it 670, and continue the process.

Moving on to step 13:
When dividing 670 by 109, we get 6 with a remainder of 16.
Put 6 as the next digit of the answer. 
Result so far: 170069.51376
The remainder is 16 after subtracting 654 from 670.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Step 14:
160 divided by 109 is 1 with a remainder of 51.
The number 1 becomes the next digit in our result. 
Result so far: 170069.513761
The remainder is 51 after subtracting 109 from 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 510, and continue the process.

Let's proceed to step 15:
109 goes into 510 4 times with a remainder of 74.
The number 4 becomes the next digit in our result. 
Result so far: 170069.5137614
If we take 436 away from 510, we end up with 74.
Since there are no more digits in the dividend, we add a zero to the remainder making it 740, and continue the process.

On to step 16:
When dividing 740 by 109, we get 6 with a remainder of 86.
Use 6 as the next digit of our solution. 
Result so far: 170069.51376146
The remainder is 86 after subtracting 654 from 740.
Since there are no more digits in the dividend, we add a zero to the remainder making it 860, and continue the process.

The final result is 170069.51376146 with a remainder of 8.6e-08.