76591912 divided by 81 
Our goal is to divide 76591912 by 81.

Step 1:
If we divide 7 by 81, we get 0 and a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 7 leaves us with 7.
Grab the next digit (6) from the dividend, add it to 7, then carry on: 76 / 81

On to step 2:
The number 81 fits into 76 0 times, leaving a remainder of 76.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 76 leaves us with 76.
Bring next digit (5) of the dividend behind the 76 and repeat the process: 765 / 81

Let's proceed to step 3:
The number 81 fits into 765 9 times, leaving a remainder of 36.
The number 9 becomes the next digit in our result. 
Result so far: 9.0
Subtracting 729 from 765 leaves us with 36.
Fetch the next digit (9) from the dividend, attach it to 36 and continue: 369 / 81

Advancing to step 4:
81 can be fit into 369 4 times, resulting in a remainder of 45.
The next digit of our result is 4. 
Result so far: 94.0
Subtract 324 from 369 to get 45.
Fetch the next digit (1) from the dividend, attach it to 45 and continue: 451 / 81

Let's proceed to step 5:
451 divided by 81 is 5 with a remainder of 46.
The number 5 becomes the next digit in our result. 
Result so far: 945.0
If we take 405 away from 451, we end up with 46.
Append the next digit (9) from the dividend to 46 and continue with: 469 / 81

Moving on to step 6:
If we divide 469 by 81, we get 5 and a remainder of 64.
The number 5 becomes the next digit in our result. 
Result so far: 9455.0
The remainder is 64 after subtracting 405 from 469.
Take the next digit (1) from the dividend and append it to 64, then repeat: 641 / 81

Moving on to step 7:
When dividing 641 by 81, we get 7 with a remainder of 74.
Put 7 as the next digit of the answer. 
Result so far: 94557.0
The remainder is 74 after subtracting 567 from 641.
Fetch the next digit (2) from the dividend, attach it to 74 and continue: 742 / 81

Step 8:
If we divide 742 by 81, we get 9 and a remainder of 13.
Write down 9 as next digit of the result. 
Result so far: 945579.0
If we subtract 729 from 742, we get 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

On to step 9:
When dividing 130 by 81, we get 1 with a remainder of 49.
Use 1 as the next digit of our solution. 
Result so far: 945579.1
Deduct 81 from 130 and we're left with 49.
Since there are no more digits in the dividend, we add a zero to the remainder making it 490, and continue the process.

Step 10:
81 goes into 490 6 times with a remainder of 4.
Put 6 as the next digit of the answer. 
Result so far: 945579.16
Deduct 486 from 490 and we're left 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.

Step 11:
If we divide 40 by 81, we get 0 and a remainder of 40.
Use 0 as the next digit of our solution. 
Result so far: 945579.16
Subtract 0 from 40 to get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Moving on to step 12:
81 can be fit into 400 4 times, resulting in a remainder of 76.
Write down 4 as next digit of the result. 
Result so far: 945579.1604
If we subtract 324 from 400, we get 76.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

Advancing to step 13:
81 can be fit into 760 9 times, resulting in a remainder of 31.
The number 9 becomes the next digit in our result. 
Result so far: 945579.16049
Subtracting 729 from 760 leaves us with 31.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

Step 14:
If we divide 310 by 81, we get 3 and a remainder of 67.
Write down 3 as next digit of the result. 
Result so far: 945579.160493
If we take 243 away from 310, we end up with 67.
Since there are no more digits in the dividend, we add a zero to the remainder making it 670, and continue the process.

Step 15:
81 goes into 670 8 times with a remainder of 22.
Use 8 as the next digit of our solution. 
Result so far: 945579.1604938
If we subtract 648 from 670, we get 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

On to step 16:
When dividing 220 by 81, we get 2 with a remainder of 58.
The next digit of our result is 2. 
Result so far: 945579.16049382
If we take 162 away from 220, we end up with 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

The quotient of the division is 945579.16049382, and the remainder is 5.8e-08.