We look at the division of 23866043 by 561 
We want to figure out the number of times 23866043 can be divided by 561.

Moving on to step 1:
2 divided by 561 is 0 with a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 2 leaves us with 2.
Grab the next digit (3) from the dividend, add it to 2, then carry on: 23 / 561

Advancing to step 2:
When dividing 23 by 561, we get 0 with a remainder of 23.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 23, we get 23.
Bring next digit (8) of the dividend behind the 23 and repeat the process: 238 / 561

Going ahead to step 3:
561 can be fit into 238 0 times, resulting in a remainder of 238.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 238, we get 238.
Append the next digit (6) from the dividend to 238 and continue with: 2386 / 561

Going ahead to step 4:
If we divide 2386 by 561, we get 4 and a remainder of 142.
Record the quotient 4 as the next digit in the result. 
Result so far: 4.0
The remainder is 142 after subtracting 2244 from 2386.
Include the next digit (6) from the dividend after 142, then repeat: 1426 / 561

Advancing to step 5:
If we divide 1426 by 561, we get 2 and a remainder of 304.
Write down 2 as next digit of the result. 
Result so far: 42.0
Subtract 1122 from 1426 to get 304.
Take the next digit (0) from the dividend and append it to 304, then repeat: 3040 / 561

Step 6:
561 goes into 3040 5 times with a remainder of 235.
Write down 5 as next digit of the result. 
Result so far: 425.0
Deduct 2805 from 3040 and we're left with 235.
Append the next digit (4) from the dividend to 235 and continue with: 2354 / 561

Going ahead to step 7:
2354 divided by 561 is 4 with a remainder of 110.
The next digit of our result is 4. 
Result so far: 4254.0
Subtract 2244 from 2354 to get 110.
Grab the next digit (3) from the dividend, add it to 110, then carry on: 1103 / 561

Let's proceed to step 8:
When dividing 1103 by 561, we get 1 with a remainder of 542.
The number 1 becomes the next digit in our result. 
Result so far: 42541.0
Subtract 561 from 1103 to get 542.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5420, and continue the process.

Moving on to step 9:
The number 561 fits into 5420 9 times, leaving a remainder of 371.
Use 9 as the next digit of our solution. 
Result so far: 42541.9
The remainder is 371 after subtracting 5049 from 5420.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3710, and continue the process.

On to step 10:
561 can be fit into 3710 6 times, resulting in a remainder of 344.
The number 6 becomes the next digit in our result. 
Result so far: 42541.96
Subtract 3366 from 3710 to get 344.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3440, and continue the process.

Step 11:
561 goes into 3440 6 times with a remainder of 74.
Write down 6 as next digit of the result. 
Result so far: 42541.966
Subtract 3366 from 3440 to get 74.
Since there are no more digits in the dividend, we add a zero to the remainder making it 740, and continue the process.

After the division, we end up with 42541.966 and a remainder of 0.0074.