We look at the division of 21340794 by 561 
We want to figure out the number of times 21340794 can be divided by 561.

Step 1:
561 can be fit into 2 0 times, resulting in 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.
Include the next digit (1) from the dividend after 2, then repeat: 21 / 561

Advancing to step 2:
561 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
Subtracting 0 from 21 leaves us with 21.
Grab the next digit (3) from the dividend, add it to 21, then carry on: 213 / 561

Step 3:
If we divide 213 by 561, we get 0 and a remainder of 213.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 213 leaves us with 213.
Grab the next digit (4) from the dividend, add it to 213, then carry on: 2134 / 561

On to step 4:
If we divide 2134 by 561, we get 3 and a remainder of 451.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
If we take 1683 away from 2134, we end up with 451.
Fetch the next digit (0) from the dividend, attach it to 451 and continue: 4510 / 561

Step 5:
When dividing 4510 by 561, we get 8 with a remainder of 22.
Use 8 as the next digit of our solution. 
Result so far: 38.0
Subtract 4488 from 4510 to get 22.
Append the next digit (7) from the dividend to 22 and continue with: 227 / 561

Advancing to step 6:
If we divide 227 by 561, we get 0 and a remainder of 227.
Use 0 as the next digit of our solution. 
Result so far: 380.0
If we subtract 0 from 227, we get 227.
Grab the next digit (9) from the dividend, add it to 227, then carry on: 2279 / 561

On to step 7:
2279 divided by 561 is 4 with a remainder of 35.
Put 4 as the next digit of the answer. 
Result so far: 3804.0
The remainder is 35 after subtracting 2244 from 2279.
Bring next digit (4) of the dividend behind the 35 and repeat the process: 354 / 561

Going ahead to step 8:
If we divide 354 by 561, we get 0 and a remainder of 354.
Record the quotient 0 as the next digit in the result. 
Result so far: 38040.0
Subtracting 0 from 354 leaves us with 354.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3540, and continue the process.

Moving on to step 9:
561 can be fit into 3540 6 times, resulting in a remainder of 174.
The next digit of our result is 6. 
Result so far: 38040.6
If we subtract 3366 from 3540, we get 174.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1740, and continue the process.

Step 10:
561 can be fit into 1740 3 times, resulting in a remainder of 57.
Use 3 as the next digit of our solution. 
Result so far: 38040.63
If we subtract 1683 from 1740, we get 57.
Since there are no more digits in the dividend, we add a zero to the remainder making it 570, and continue the process.

Moving on to step 11:
561 can be fit into 570 1 times, resulting in a remainder of 9.
Write down 1 as next digit of the result. 
Result so far: 38040.631
If we subtract 561 from 570, we get 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Step 12:
The number 561 fits into 90 0 times, leaving a remainder of 90.
The next digit of our result is 0. 
Result so far: 38040.631
Deduct 0 from 90 and we're left with 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 900, and continue the process.

Moving on to step 13:
If we divide 900 by 561, we get 1 and a remainder of 339.
Record the quotient 1 as the next digit in the result. 
Result so far: 38040.63101
Deduct 561 from 900 and we're left with 339.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3390, and continue the process.

Going ahead to step 14:
561 goes into 3390 6 times with a remainder of 24.
Put 6 as the next digit of the answer. 
Result so far: 38040.631016
Subtract 3366 from 3390 to get 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Moving on to step 15:
240 divided by 561 is 0 with a remainder of 240.
The next digit of our result is 0. 
Result so far: 38040.631016
The remainder is 240 after subtracting 0 from 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2400, and continue the process.

Let's proceed to step 16:
2400 divided by 561 is 4 with a remainder of 156.
Put 4 as the next digit of the answer. 
Result so far: 38040.63101604
If we subtract 2244 from 2400, we get 156.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1560, and continue the process.

After the division, we end up with 38040.63101604 and a remainder of 1.56e-07.