21235938 ÷ 109 
We're looking to find how many times 109 goes into 21235938.

Step 1:
The number 109 fits into 2 0 times, leaving a remainder of 2.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 2 leaves us with 2.
Bring next digit (1) of the dividend behind the 2 and repeat the process: 21 / 109

On to step 2:
109 can be fit into 21 0 times, resulting in a remainder of 21.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 21 after subtracting 0 from 21.
Bring next digit (2) of the dividend behind the 21 and repeat the process: 212 / 109

Let's proceed to step 3:
109 can be fit into 212 1 times, resulting in a remainder of 103.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we take 109 away from 212, we end up with 103.
Fetch the next digit (3) from the dividend, attach it to 103 and continue: 1033 / 109

Going ahead to step 4:
When dividing 1033 by 109, we get 9 with a remainder of 52.
Use 9 as the next digit of our solution. 
Result so far: 19.0
If we take 981 away from 1033, we end up with 52.
Take the next digit (5) from the dividend and append it to 52, then repeat: 525 / 109

Moving on to step 5:
When dividing 525 by 109, we get 4 with a remainder of 89.
Use 4 as the next digit of our solution. 
Result so far: 194.0
If we take 436 away from 525, we end up with 89.
Include the next digit (9) from the dividend after 89, then repeat: 899 / 109

Going ahead to step 6:
The number 109 fits into 899 8 times, leaving a remainder of 27.
The next digit of our result is 8. 
Result so far: 1948.0
Subtracting 872 from 899 leaves us with 27.
Grab the next digit (3) from the dividend, add it to 27, then carry on: 273 / 109

Step 7:
The number 109 fits into 273 2 times, leaving a remainder of 55.
The number 2 becomes the next digit in our result. 
Result so far: 19482.0
The remainder is 55 after subtracting 218 from 273.
Take the next digit (8) from the dividend and append it to 55, then repeat: 558 / 109

Moving on to step 8:
When dividing 558 by 109, we get 5 with a remainder of 13.
Put 5 as the next digit of the answer. 
Result so far: 194825.0
If we take 545 away from 558, we end up with 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Advancing to step 9:
When dividing 130 by 109, we get 1 with a remainder of 21.
The next digit of our result is 1. 
Result so far: 194825.1
If we take 109 away from 130, we end up with 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Going ahead to step 10:
If we divide 210 by 109, we get 1 and a remainder of 101.
Write down 1 as next digit of the result. 
Result so far: 194825.11
If we subtract 109 from 210, we get 101.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1010, and continue the process.

After the division, we end up with 194825.11 and a remainder of 0.101.