We look at the division of 21055104 by 561 
Let's see how many times 561 fits into 21055104.

Going ahead to step 1:
If we divide 2 by 561, we get 0 and a remainder of 2.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 2, we end up with 2.
Include the next digit (1) from the dividend after 2, then repeat: 21 / 561

Step 2:
If we divide 21 by 561, we get 0 and a remainder of 21.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 21 and we're left with 21.
Bring next digit (0) of the dividend behind the 21 and repeat the process: 210 / 561

Let's proceed to step 3:
When dividing 210 by 561, we get 0 with a remainder of 210.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 210 after subtracting 0 from 210.
Append the next digit (5) from the dividend to 210 and continue with: 2105 / 561

Step 4:
2105 divided by 561 is 3 with a remainder of 422.
The next digit of our result is 3. 
Result so far: 3.0
Subtract 1683 from 2105 to get 422.
Append the next digit (5) from the dividend to 422 and continue with: 4225 / 561

Advancing to step 5:
If we divide 4225 by 561, we get 7 and a remainder of 298.
The next digit of our result is 7. 
Result so far: 37.0
Deduct 3927 from 4225 and we're left with 298.
Grab the next digit (1) from the dividend, add it to 298, then carry on: 2981 / 561

Step 6:
561 can be fit into 2981 5 times, resulting in a remainder of 176.
Use 5 as the next digit of our solution. 
Result so far: 375.0
Subtracting 2805 from 2981 leaves us with 176.
Include the next digit (0) from the dividend after 176, then repeat: 1760 / 561

On to step 7:
When dividing 1760 by 561, we get 3 with a remainder of 77.
Use 3 as the next digit of our solution. 
Result so far: 3753.0
If we subtract 1683 from 1760, we get 77.
Grab the next digit (4) from the dividend, add it to 77, then carry on: 774 / 561

Let's proceed to step 8:
561 can be fit into 774 1 times, resulting in a remainder of 213.
Write down 1 as next digit of the result. 
Result so far: 37531.0
Subtracting 561 from 774 leaves us with 213.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2130, and continue the process.

Let's proceed to step 9:
The number 561 fits into 2130 3 times, leaving a remainder of 447.
Write down 3 as next digit of the result. 
Result so far: 37531.3
The remainder is 447 after subtracting 1683 from 2130.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4470, and continue the process.

Going ahead to step 10:
4470 divided by 561 is 7 with a remainder of 543.
Write down 7 as next digit of the result. 
Result so far: 37531.37
Subtract 3927 from 4470 to get 543.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5430, and continue the process.

Advancing to step 11:
561 goes into 5430 9 times with a remainder of 381.
Put 9 as the next digit of the answer. 
Result so far: 37531.379
If we take 5049 away from 5430, we end up with 381.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3810, and continue the process.

Let's proceed to step 12:
3810 divided by 561 is 6 with a remainder of 444.
The number 6 becomes the next digit in our result. 
Result so far: 37531.3796
Deduct 3366 from 3810 and we're left with 444.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4440, and continue the process.

Advancing to step 13:
The number 561 fits into 4440 7 times, leaving a remainder of 513.
Put 7 as the next digit of the answer. 
Result so far: 37531.37967
Subtracting 3927 from 4440 leaves us with 513.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5130, and continue the process.

Going ahead to step 14:
The number 561 fits into 5130 9 times, leaving a remainder of 81.
Write down 9 as next digit of the result. 
Result so far: 37531.379679
Subtract 5049 from 5130 to get 81.
Since there are no more digits in the dividend, we add a zero to the remainder making it 810, and continue the process.

Going ahead to step 15:
If we divide 810 by 561, we get 1 and a remainder of 249.
Use 1 as the next digit of our solution. 
Result so far: 37531.3796791
Deduct 561 from 810 and we're left with 249.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2490, and continue the process.

Let's proceed to step 16:
When dividing 2490 by 561, we get 4 with a remainder of 246.
Record the quotient 4 as the next digit in the result. 
Result so far: 37531.37967914
Subtract 2244 from 2490 to get 246.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2460, and continue the process.

The quotient of the division is 37531.37967914, and the remainder is 2.46e-07.