Let's divide 21107082 by 23
Let's see how many times 23 fits into 21107082.

On to step 1:
2 divided by 23 is 0 with a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 2 and we're left with 2.
Take the next digit (1) from the dividend and append it to 2, then repeat: 21 / 23

Going ahead to step 2:
23 goes into 21 0 times with a remainder of 21.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 21 to get 21.
Take the next digit (1) from the dividend and append it to 21, then repeat: 211 / 23

Let's proceed to step 3:
When dividing 211 by 23, we get 9 with a remainder of 4.
Put 9 as the next digit of the answer. 
Result so far: 9.0
The remainder is 4 after subtracting 207 from 211.
Grab the next digit (0) from the dividend, add it to 4, then carry on: 40 / 23

Moving on to step 4:
If we divide 40 by 23, we get 1 and a remainder of 17.
Use 1 as the next digit of our solution. 
Result so far: 91.0
Subtract 23 from 40 to get 17.
Bring next digit (7) of the dividend behind the 17 and repeat the process: 177 / 23

Moving on to step 5:
The number 23 fits into 177 7 times, leaving a remainder of 16.
Record the quotient 7 as the next digit in the result. 
Result so far: 917.0
Deduct 161 from 177 and we're left with 16.
Grab the next digit (0) from the dividend, add it to 16, then carry on: 160 / 23

Going ahead to step 6:
23 can be fit into 160 6 times, resulting in a remainder of 22.
Use 6 as the next digit of our solution. 
Result so far: 9176.0
If we subtract 138 from 160, we get 22.
Grab the next digit (8) from the dividend, add it to 22, then carry on: 228 / 23

On to step 7:
When dividing 228 by 23, we get 9 with a remainder of 21.
The number 9 becomes the next digit in our result. 
Result so far: 91769.0
Subtract 207 from 228 to get 21.
Take the next digit (2) from the dividend and append it to 21, then repeat: 212 / 23

Going ahead to step 8:
23 goes into 212 9 times with a remainder of 5.
Use 9 as the next digit of our solution. 
Result so far: 917699.0
The remainder is 5 after subtracting 207 from 212.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Step 9:
The number 23 fits into 50 2 times, leaving a remainder of 4.
Use 2 as the next digit of our solution. 
Result so far: 917699.2
Subtracting 46 from 50 leaves us with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

On to step 10:
23 can be fit into 40 1 times, resulting in a remainder of 17.
Write down 1 as next digit of the result. 
Result so far: 917699.21
If we subtract 23 from 40, we get 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Moving on to step 11:
The number 23 fits into 170 7 times, leaving a remainder of 9.
Write down 7 as next digit of the result. 
Result so far: 917699.217
The remainder is 9 after subtracting 161 from 170.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Let's proceed to step 12:
23 goes into 90 3 times with a remainder of 21.
The number 3 becomes the next digit in our result. 
Result so far: 917699.2173
Subtract 69 from 90 to get 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Step 13:
23 goes into 210 9 times with a remainder of 3.
The next digit of our result is 9. 
Result so far: 917699.21739
Deduct 207 from 210 and we're left with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Moving on to step 14:
23 can be fit into 30 1 times, resulting in a remainder of 7.
Put 1 as the next digit of the answer. 
Result so far: 917699.217391
Deduct 23 from 30 and we're left 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.

Moving on to step 15:
When dividing 70 by 23, we get 3 with a remainder of 1.
Write down 3 as next digit of the result. 
Result so far: 917699.2173913
If we take 69 away from 70, we end up with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Going ahead to step 16:
The number 23 fits into 10 0 times, leaving a remainder of 10.
Write down 0 as next digit of the result. 
Result so far: 917699.2173913
Subtracting 0 from 10 leaves us with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

The final outcome is 917699.2173913, with a leftover of 1e-08.