81986945 divided by 452 
We want to divide 81986945 by 452.

Going ahead to step 1:
If we divide 8 by 452, we get 0 and a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Append the next digit (1) from the dividend to 8 and continue with: 81 / 452

Let's proceed to step 2:
452 can be fit into 81 0 times, resulting in a remainder of 81.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 81 to get 81.
Grab the next digit (9) from the dividend, add it to 81, then carry on: 819 / 452

Moving on to step 3:
819 divided by 452 is 1 with a remainder of 367.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Deduct 452 from 819 and we're left with 367.
Grab the next digit (8) from the dividend, add it to 367, then carry on: 3678 / 452

Going ahead to step 4:
3678 divided by 452 is 8 with a remainder of 62.
Put 8 as the next digit of the answer. 
Result so far: 18.0
Subtracting 3616 from 3678 leaves us with 62.
Fetch the next digit (6) from the dividend, attach it to 62 and continue: 626 / 452

Let's proceed to step 5:
When dividing 626 by 452, we get 1 with a remainder of 174.
The next digit of our result is 1. 
Result so far: 181.0
Subtracting 452 from 626 leaves us with 174.
Include the next digit (9) from the dividend after 174, then repeat: 1749 / 452

On to step 6:
If we divide 1749 by 452, we get 3 and a remainder of 393.
Put 3 as the next digit of the answer. 
Result so far: 1813.0
If we subtract 1356 from 1749, we get 393.
Fetch the next digit (4) from the dividend, attach it to 393 and continue: 3934 / 452

Going ahead to step 7:
452 can be fit into 3934 8 times, resulting in a remainder of 318.
Record the quotient 8 as the next digit in the result. 
Result so far: 18138.0
Deduct 3616 from 3934 and we're left with 318.
Take the next digit (5) from the dividend and append it to 318, then repeat: 3185 / 452

Advancing to step 8:
The number 452 fits into 3185 7 times, leaving a remainder of 21.
Record the quotient 7 as the next digit in the result. 
Result so far: 181387.0
Deduct 3164 from 3185 and we're left with 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Going ahead to step 9:
The number 452 fits into 210 0 times, leaving a remainder of 210.
Write down 0 as next digit of the result. 
Result so far: 181387.0
Subtract 0 from 210 to get 210.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2100, and continue the process.

On to step 10:
When dividing 2100 by 452, we get 4 with a remainder of 292.
The number 4 becomes the next digit in our result. 
Result so far: 181387.04
If we subtract 1808 from 2100, we get 292.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2920, and continue the process.

Moving on to step 11:
452 can be fit into 2920 6 times, resulting in a remainder of 208.
Use 6 as the next digit of our solution. 
Result so far: 181387.046
Deduct 2712 from 2920 and we're left with 208.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2080, and continue the process.

On to step 12:
If we divide 2080 by 452, we get 4 and a remainder of 272.
Record the quotient 4 as the next digit in the result. 
Result so far: 181387.0464
If we subtract 1808 from 2080, we get 272.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2720, and continue the process.

Let's proceed to step 13:
452 can be fit into 2720 6 times, resulting in a remainder of 8.
The next digit of our result is 6. 
Result so far: 181387.04646
The remainder is 8 after subtracting 2712 from 2720.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Step 14:
452 can be fit into 80 0 times, resulting in a remainder of 80.
Use 0 as the next digit of our solution. 
Result so far: 181387.04646
Deduct 0 from 80 and we're left with 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Moving on to step 15:
When dividing 800 by 452, we get 1 with a remainder of 348.
The next digit of our result is 1. 
Result so far: 181387.0464601
The remainder is 348 after subtracting 452 from 800.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3480, and continue the process.

Advancing to step 16:
If we divide 3480 by 452, we get 7 and a remainder of 316.
Put 7 as the next digit of the answer. 
Result so far: 181387.04646017
Subtracting 3164 from 3480 leaves us with 316.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3160, and continue the process.

After the division, we end up with 181387.04646017 and a remainder of 3.16e-07.