81936712 divided by 81 
We're looking to find how many times 81 goes into 81936712.

Going ahead to step 1:
The number 81 fits into 8 0 times, leaving a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Grab the next digit (1) from the dividend, add it to 8, then carry on: 81 / 81

Advancing to step 2:
81 can be fit into 81 1 times, resulting in a remainder of 0.
Write down 1 as next digit of the result. 
Result so far: 1.0
Subtract 81 from 81 to get 0.
Append the next digit (9) from the dividend to 0 and continue with: 9 / 81

Going ahead to step 3:
If we divide 9 by 81, we get 0 and a remainder of 9.
Record the quotient 0 as the next digit in the result. 
Result so far: 10.0
The remainder is 9 after subtracting 0 from 9.
Fetch the next digit (3) from the dividend, attach it to 9 and continue: 93 / 81

Let's proceed to step 4:
When dividing 93 by 81, we get 1 with a remainder of 12.
Record the quotient 1 as the next digit in the result. 
Result so far: 101.0
Subtract 81 from 93 to get 12.
Include the next digit (6) from the dividend after 12, then repeat: 126 / 81

Going ahead to step 5:
When dividing 126 by 81, we get 1 with a remainder of 45.
The number 1 becomes the next digit in our result. 
Result so far: 1011.0
Subtract 81 from 126 to get 45.
Take the next digit (7) from the dividend and append it to 45, then repeat: 457 / 81

Moving on to step 6:
81 goes into 457 5 times with a remainder of 52.
Write down 5 as next digit of the result. 
Result so far: 10115.0
If we subtract 405 from 457, we get 52.
Grab the next digit (1) from the dividend, add it to 52, then carry on: 521 / 81

Moving on to step 7:
The number 81 fits into 521 6 times, leaving a remainder of 35.
The next digit of our result is 6. 
Result so far: 101156.0
If we take 486 away from 521, we end up with 35.
Append the next digit (2) from the dividend to 35 and continue with: 352 / 81

On to step 8:
81 goes into 352 4 times with a remainder of 28.
Record the quotient 4 as the next digit in the result. 
Result so far: 1011564.0
If we subtract 324 from 352, we get 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

On to step 9:
81 goes into 280 3 times with a remainder of 37.
The next digit of our result is 3. 
Result so far: 1011564.3
Subtract 243 from 280 to get 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

Let's proceed to step 10:
370 divided by 81 is 4 with a remainder of 46.
The number 4 becomes the next digit in our result. 
Result so far: 1011564.34
Deduct 324 from 370 and we're left with 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Advancing to step 11:
81 can be fit into 460 5 times, resulting in a remainder of 55.
The number 5 becomes the next digit in our result. 
Result so far: 1011564.345
If we take 405 away from 460, we end up with 55.
Since there are no more digits in the dividend, we add a zero to the remainder making it 550, and continue the process.

Let's proceed to step 12:
When dividing 550 by 81, we get 6 with a remainder of 64.
The number 6 becomes the next digit in our result. 
Result so far: 1011564.3456
Subtract 486 from 550 to get 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Moving on to step 13:
If we divide 640 by 81, we get 7 and a remainder of 73.
The number 7 becomes the next digit in our result. 
Result so far: 1011564.34567
If we subtract 567 from 640, we get 73.
Since there are no more digits in the dividend, we add a zero to the remainder making it 730, and continue the process.

On to step 14:
81 can be fit into 730 9 times, resulting in a remainder of 1.
Put 9 as the next digit of the answer. 
Result so far: 1011564.345679
Deduct 729 from 730 and we're left 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.

Let's proceed to step 15:
If we divide 10 by 81, we get 0 and a remainder of 10.
Use 0 as the next digit of our solution. 
Result so far: 1011564.345679
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.

On to step 16:
If we divide 100 by 81, we get 1 and a remainder of 19.
Put 1 as the next digit of the answer. 
Result so far: 1011564.34567901
The remainder is 19 after subtracting 81 from 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

After the division, we end up with 1011564.34567901 and a remainder of 1.9e-08.