311982 ÷ 81 
We're looking to find how many times 81 goes into 311982.

Let's proceed to step 1:
81 can be fit into 3 0 times, resulting in a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 3, we end up with 3.
Include the next digit (1) from the dividend after 3, then repeat: 31 / 81

Going ahead to step 2:
81 goes into 31 0 times with a remainder of 31.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 31 after subtracting 0 from 31.
Grab the next digit (1) from the dividend, add it to 31, then carry on: 311 / 81

Moving on to step 3:
311 divided by 81 is 3 with a remainder of 68.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
If we take 243 away from 311, we end up with 68.
Fetch the next digit (9) from the dividend, attach it to 68 and continue: 689 / 81

Advancing to step 4:
The number 81 fits into 689 8 times, leaving a remainder of 41.
Put 8 as the next digit of the answer. 
Result so far: 38.0
Subtract 648 from 689 to get 41.
Append the next digit (8) from the dividend to 41 and continue with: 418 / 81

Step 5:
The number 81 fits into 418 5 times, leaving a remainder of 13.
Record the quotient 5 as the next digit in the result. 
Result so far: 385.0
The remainder is 13 after subtracting 405 from 418.
Grab the next digit (2) from the dividend, add it to 13, then carry on: 132 / 81

On to step 6:
132 divided by 81 is 1 with a remainder of 51.
Use 1 as the next digit of our solution. 
Result so far: 3851.0
If we subtract 81 from 132, we get 51.
Since there are no more digits in the dividend, we add a zero to the remainder making it 510, and continue the process.

Advancing to step 7:
If we divide 510 by 81, we get 6 and a remainder of 24.
The number 6 becomes the next digit in our result. 
Result so far: 3851.6
Deduct 486 from 510 and we're left with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Advancing to step 8:
When dividing 240 by 81, we get 2 with a remainder of 78.
The next digit of our result is 2. 
Result so far: 3851.62
Subtract 162 from 240 to get 78.
Since there are no more digits in the dividend, we add a zero to the remainder making it 780, and continue the process.

Advancing to step 9:
81 can be fit into 780 9 times, resulting in a remainder of 51.
Write down 9 as next digit of the result. 
Result so far: 3851.629
The remainder is 51 after subtracting 729 from 780.
Since there are no more digits in the dividend, we add a zero to the remainder making it 510, and continue the process.

Advancing to step 10:
81 goes into 510 6 times with a remainder of 24.
The number 6 becomes the next digit in our result. 
Result so far: 3851.6296
Subtract 486 from 510 to get 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Going ahead to step 11:
When dividing 240 by 81, we get 2 with a remainder of 78.
The next digit of our result is 2. 
Result so far: 3851.62962
If we take 162 away from 240, we end up with 78.
Since there are no more digits in the dividend, we add a zero to the remainder making it 780, and continue the process.

Step 12:
81 goes into 780 9 times with a remainder of 51.
Put 9 as the next digit of the answer. 
Result so far: 3851.629629
Subtracting 729 from 780 leaves us with 51.
Since there are no more digits in the dividend, we add a zero to the remainder making it 510, and continue the process.

Step 13:
81 can be fit into 510 6 times, resulting in a remainder of 24.
The next digit of our result is 6. 
Result so far: 3851.6296296
The remainder is 24 after subtracting 486 from 510.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

On to step 14:
240 divided by 81 is 2 with a remainder of 78.
Record the quotient 2 as the next digit in the result. 
Result so far: 3851.62962962
Deduct 162 from 240 and we're left with 78.
Since there are no more digits in the dividend, we add a zero to the remainder making it 780, and continue the process.

Our division results in 3851.62962962 with a remaining 7.8e-08.