We're dividing 21807397 by 110 
We're looking to find how many times 110 goes into 21807397.

On to step 1:
The number 110 fits into 2 0 times, leaving a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 2 after subtracting 0 from 2.
Fetch the next digit (1) from the dividend, attach it to 2 and continue: 21 / 110

Moving on to step 2:
The number 110 fits into 21 0 times, leaving a remainder of 21.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 21 leaves us with 21.
Bring next digit (8) of the dividend behind the 21 and repeat the process: 218 / 110

Moving on to step 3:
218 divided by 110 is 1 with a remainder of 108.
The next digit of our result is 1. 
Result so far: 1.0
If we subtract 110 from 218, we get 108.
Append the next digit (0) from the dividend to 108 and continue with: 1080 / 110

Step 4:
1080 divided by 110 is 9 with a remainder of 90.
The next digit of our result is 9. 
Result so far: 19.0
Subtract 990 from 1080 to get 90.
Bring next digit (7) of the dividend behind the 90 and repeat the process: 907 / 110

Step 5:
110 can be fit into 907 8 times, resulting in a remainder of 27.
The number 8 becomes the next digit in our result. 
Result so far: 198.0
Subtract 880 from 907 to get 27.
Append the next digit (3) from the dividend to 27 and continue with: 273 / 110

On to step 6:
If we divide 273 by 110, we get 2 and a remainder of 53.
Put 2 as the next digit of the answer. 
Result so far: 1982.0
Subtracting 220 from 273 leaves us with 53.
Bring next digit (9) of the dividend behind the 53 and repeat the process: 539 / 110

Step 7:
The number 110 fits into 539 4 times, leaving a remainder of 99.
Use 4 as the next digit of our solution. 
Result so far: 19824.0
The remainder is 99 after subtracting 440 from 539.
Include the next digit (7) from the dividend after 99, then repeat: 997 / 110

Step 8:
110 can be fit into 997 9 times, resulting in a remainder of 7.
Use 9 as the next digit of our solution. 
Result so far: 198249.0
Subtracting 990 from 997 leaves us with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

On to step 9:
110 can be fit into 70 0 times, resulting in a remainder of 70.
The next digit of our result is 0. 
Result so far: 198249.0
If we take 0 away from 70, we end up with 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

On to step 10:
700 divided by 110 is 6 with a remainder of 40.
The number 6 becomes the next digit in our result. 
Result so far: 198249.06
Deduct 660 from 700 and we're left with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

On to step 11:
When dividing 400 by 110, we get 3 with a remainder of 70.
The next digit of our result is 3. 
Result so far: 198249.063
Deduct 330 from 400 and we're left with 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Going ahead to step 12:
700 divided by 110 is 6 with a remainder of 40.
The number 6 becomes the next digit in our result. 
Result so far: 198249.0636
The remainder is 40 after subtracting 660 from 700.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Going ahead to step 13:
110 goes into 400 3 times with a remainder of 70.
The number 3 becomes the next digit in our result. 
Result so far: 198249.06363
Subtracting 330 from 400 leaves us with 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Going ahead to step 14:
When dividing 700 by 110, we get 6 with a remainder of 40.
Write down 6 as next digit of the result. 
Result so far: 198249.063636
If we take 660 away from 700, we end up with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Step 15:
110 can be fit into 400 3 times, resulting in a remainder of 70.
The next digit of our result is 3. 
Result so far: 198249.0636363
Subtracting 330 from 400 leaves us with 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Let's proceed to step 16:
110 can be fit into 700 6 times, resulting in a remainder of 40.
Put 6 as the next digit of the answer. 
Result so far: 198249.06363636
Subtract 660 from 700 to get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

The final outcome is 198249.06363636, with a leftover of 4e-08.