21372811 divided by 451 
We're looking to find how many times 451 goes into 21372811.

Moving on to step 1:
451 can be fit into 2 0 times, resulting in a remainder of 2.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 2 leaves us with 2.
Grab the next digit (1) from the dividend, add it to 2, then carry on: 21 / 451

On to step 2:
If we divide 21 by 451, we get 0 and a remainder of 21.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 21, we end up with 21.
Grab the next digit (3) from the dividend, add it to 21, then carry on: 213 / 451

Moving on to step 3:
451 goes into 213 0 times with a remainder of 213.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 213, we end up with 213.
Fetch the next digit (7) from the dividend, attach it to 213 and continue: 2137 / 451

Step 4:
If we divide 2137 by 451, we get 4 and a remainder of 333.
The next digit of our result is 4. 
Result so far: 4.0
If we take 1804 away from 2137, we end up with 333.
Fetch the next digit (2) from the dividend, attach it to 333 and continue: 3332 / 451

Moving on to step 5:
If we divide 3332 by 451, we get 7 and a remainder of 175.
The next digit of our result is 7. 
Result so far: 47.0
If we subtract 3157 from 3332, we get 175.
Append the next digit (8) from the dividend to 175 and continue with: 1758 / 451

Step 6:
If we divide 1758 by 451, we get 3 and a remainder of 405.
Write down 3 as next digit of the result. 
Result so far: 473.0
If we take 1353 away from 1758, we end up with 405.
Grab the next digit (1) from the dividend, add it to 405, then carry on: 4051 / 451

Going ahead to step 7:
451 goes into 4051 8 times with a remainder of 443.
Put 8 as the next digit of the answer. 
Result so far: 4738.0
Deduct 3608 from 4051 and we're left with 443.
Grab the next digit (1) from the dividend, add it to 443, then carry on: 4431 / 451

Let's proceed to step 8:
When dividing 4431 by 451, we get 9 with a remainder of 372.
Write down 9 as next digit of the result. 
Result so far: 47389.0
The remainder is 372 after subtracting 4059 from 4431.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3720, and continue the process.

On to step 9:
If we divide 3720 by 451, we get 8 and a remainder of 112.
Put 8 as the next digit of the answer. 
Result so far: 47389.8
Subtracting 3608 from 3720 leaves us with 112.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1120, and continue the process.

Going ahead to step 10:
1120 divided by 451 is 2 with a remainder of 218.
The next digit of our result is 2. 
Result so far: 47389.82
If we take 902 away from 1120, we end up with 218.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2180, and continue the process.

Advancing to step 11:
451 can be fit into 2180 4 times, resulting in a remainder of 376.
Write down 4 as next digit of the result. 
Result so far: 47389.824
The remainder is 376 after subtracting 1804 from 2180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3760, and continue the process.

Moving on to step 12:
451 goes into 3760 8 times with a remainder of 152.
Put 8 as the next digit of the answer. 
Result so far: 47389.8248
Subtracting 3608 from 3760 leaves us with 152.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1520, and continue the process.

On to step 13:
If we divide 1520 by 451, we get 3 and a remainder of 167.
Put 3 as the next digit of the answer. 
Result so far: 47389.82483
Subtract 1353 from 1520 to get 167.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1670, and continue the process.

Advancing to step 14:
451 goes into 1670 3 times with a remainder of 317.
The next digit of our result is 3. 
Result so far: 47389.824833
If we subtract 1353 from 1670, we get 317.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3170, and continue the process.

The final result is 47389.824833 with a remainder of 3.17e-05.