We look at the division of 81394821 by 452 
We want to divide 81394821 by 452.

Moving on to step 1:
8 divided by 452 is 0 with a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Bring next digit (1) of the dividend behind the 8 and repeat the process: 81 / 452

Advancing to step 2:
452 goes into 81 0 times with a remainder of 81.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 81, we get 81.
Grab the next digit (3) from the dividend, add it to 81, then carry on: 813 / 452

Going ahead to step 3:
452 can be fit into 813 1 times, resulting in a remainder of 361.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we subtract 452 from 813, we get 361.
Take the next digit (9) from the dividend and append it to 361, then repeat: 3619 / 452

Going ahead to step 4:
452 goes into 3619 8 times with a remainder of 3.
Put 8 as the next digit of the answer. 
Result so far: 18.0
Subtracting 3616 from 3619 leaves us with 3.
Fetch the next digit (4) from the dividend, attach it to 3 and continue: 34 / 452

Moving on to step 5:
452 can be fit into 34 0 times, resulting in a remainder of 34.
Use 0 as the next digit of our solution. 
Result so far: 180.0
If we take 0 away from 34, we end up with 34.
Fetch the next digit (8) from the dividend, attach it to 34 and continue: 348 / 452

Moving on to step 6:
If we divide 348 by 452, we get 0 and a remainder of 348.
Write down 0 as next digit of the result. 
Result so far: 1800.0
Subtracting 0 from 348 leaves us with 348.
Include the next digit (2) from the dividend after 348, then repeat: 3482 / 452

On to step 7:
452 can be fit into 3482 7 times, resulting in a remainder of 318.
The next digit of our result is 7. 
Result so far: 18007.0
Deduct 3164 from 3482 and we're left with 318.
Bring next digit (1) of the dividend behind the 318 and repeat the process: 3181 / 452

Advancing to step 8:
If we divide 3181 by 452, we get 7 and a remainder of 17.
Record the quotient 7 as the next digit in the result. 
Result so far: 180077.0
If we subtract 3164 from 3181, 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.

Going ahead to step 9:
452 goes into 170 0 times with a remainder of 170.
Record the quotient 0 as the next digit in the result. 
Result so far: 180077.0
Deduct 0 from 170 and we're left with 170.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1700, and continue the process.

Moving on to step 10:
452 can be fit into 1700 3 times, resulting in a remainder of 344.
Record the quotient 3 as the next digit in the result. 
Result so far: 180077.03
Subtract 1356 from 1700 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.

Let's proceed to step 11:
452 can be fit into 3440 7 times, resulting in a remainder of 276.
Record the quotient 7 as the next digit in the result. 
Result so far: 180077.037
Subtracting 3164 from 3440 leaves us with 276.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2760, and continue the process.

Step 12:
If we divide 2760 by 452, we get 6 and a remainder of 48.
Put 6 as the next digit of the answer. 
Result so far: 180077.0376
If we take 2712 away from 2760, we end up with 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Going ahead to step 13:
If we divide 480 by 452, we get 1 and a remainder of 28.
The number 1 becomes the next digit in our result. 
Result so far: 180077.03761
Subtracting 452 from 480 leaves us with 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Moving on to step 14:
The number 452 fits into 280 0 times, leaving a remainder of 280.
Put 0 as the next digit of the answer. 
Result so far: 180077.03761
If we subtract 0 from 280, we get 280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2800, and continue the process.

On to step 15:
The number 452 fits into 2800 6 times, leaving a remainder of 88.
Write down 6 as next digit of the result. 
Result so far: 180077.0376106
If we subtract 2712 from 2800, we get 88.
Since there are no more digits in the dividend, we add a zero to the remainder making it 880, and continue the process.

Let's proceed to step 16:
880 divided by 452 is 1 with a remainder of 428.
Use 1 as the next digit of our solution. 
Result so far: 180077.03761061
If we take 452 away from 880, we end up with 428.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4280, and continue the process.

The quotient of the division is 180077.03761061, and the remainder is 4.28e-07.