We divide 311086 by 81
Our goal is to divide 311086 by 81.

Going ahead to step 1:
The number 81 fits into 3 0 times, leaving a remainder of 3.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 3 to get 3.
Include the next digit (1) from the dividend after 3, then repeat: 31 / 81

Step 2:
If we divide 31 by 81, we get 0 and a remainder of 31.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 31 leaves us with 31.
Include the next digit (1) from the dividend after 31, then repeat: 311 / 81

Let's proceed to step 3:
The number 81 fits into 311 3 times, leaving a remainder of 68.
The next digit of our result is 3. 
Result so far: 3.0
Deduct 243 from 311 and we're left with 68.
Append the next digit (0) from the dividend to 68 and continue with: 680 / 81

Advancing to step 4:
81 can be fit into 680 8 times, resulting in a remainder of 32.
The number 8 becomes the next digit in our result. 
Result so far: 38.0
Deduct 648 from 680 and we're left with 32.
Grab the next digit (8) from the dividend, add it to 32, then carry on: 328 / 81

Moving on to step 5:
If we divide 328 by 81, we get 4 and a remainder of 4.
Put 4 as the next digit of the answer. 
Result so far: 384.0
Deduct 324 from 328 and we're left with 4.
Include the next digit (6) from the dividend after 4, then repeat: 46 / 81

Moving on to step 6:
81 can be fit into 46 0 times, resulting in a remainder of 46.
The next digit of our result is 0. 
Result so far: 3840.0
Subtracting 0 from 46 leaves us 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.

Let's proceed to step 7:
If we divide 460 by 81, we get 5 and a remainder of 55.
Use 5 as the next digit of our solution. 
Result so far: 3840.5
Subtract 405 from 460 to get 55.
Since there are no more digits in the dividend, we add a zero to the remainder making it 550, and continue the process.

On to step 8:
If we divide 550 by 81, we get 6 and a remainder of 64.
Use 6 as the next digit of our solution. 
Result so far: 3840.56
If we subtract 486 from 550, we 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.

Going ahead to step 9:
When dividing 640 by 81, we get 7 with a remainder of 73.
Write down 7 as next digit of the result. 
Result so far: 3840.567
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.

Step 10:
When dividing 730 by 81, we get 9 with a remainder of 1.
Record the quotient 9 as the next digit in the result. 
Result so far: 3840.5679
If we take 729 away from 730, we end up 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.

Advancing to step 11:
The number 81 fits into 10 0 times, leaving a remainder of 10.
The next digit of our result is 0. 
Result so far: 3840.5679
If we subtract 0 from 10, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Advancing to step 12:
If we divide 100 by 81, we get 1 and a remainder of 19.
The next digit of our result is 1. 
Result so far: 3840.567901
Subtract 81 from 100 to get 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Advancing to step 13:
The number 81 fits into 190 2 times, leaving a remainder of 28.
The number 2 becomes the next digit in our result. 
Result so far: 3840.5679012
If we take 162 away from 190, we end up 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:
81 goes into 280 3 times with a remainder of 37.
Put 3 as the next digit of the answer. 
Result so far: 3840.56790123
If we take 243 away from 280, we end up with 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

After the division, we end up with 3840.56790123 and a remainder of 3.7e-08.