311985 ÷ 91 
Let's see how many times 91 fits into 311985.

Advancing to step 1:
The number 91 fits into 3 0 times, leaving a remainder of 3.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 3, we end up with 3.
Grab the next digit (1) from the dividend, add it to 3, then carry on: 31 / 91

Advancing to step 2:
91 goes into 31 0 times with a remainder of 31.
Write down 0 as next digit of the result. 
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 / 91

Going ahead to step 3:
If we divide 311 by 91, we get 3 and a remainder of 38.
The next digit of our result is 3. 
Result so far: 3.0
Deduct 273 from 311 and we're left with 38.
Append the next digit (9) from the dividend to 38 and continue with: 389 / 91

Let's proceed to step 4:
If we divide 389 by 91, we get 4 and a remainder of 25.
Write down 4 as next digit of the result. 
Result so far: 34.0
The remainder is 25 after subtracting 364 from 389.
Fetch the next digit (8) from the dividend, attach it to 25 and continue: 258 / 91

Moving on to step 5:
When dividing 258 by 91, we get 2 with a remainder of 76.
Write down 2 as next digit of the result. 
Result so far: 342.0
Deduct 182 from 258 and we're left with 76.
Take the next digit (5) from the dividend and append it to 76, then repeat: 765 / 91

Let's proceed to step 6:
If we divide 765 by 91, we get 8 and a remainder of 37.
Use 8 as the next digit of our solution. 
Result so far: 3428.0
If we subtract 728 from 765, we 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.

Step 7:
91 goes into 370 4 times with a remainder of 6.
The number 4 becomes the next digit in our result. 
Result so far: 3428.4
If we subtract 364 from 370, we get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Step 8:
The number 91 fits into 60 0 times, leaving a remainder of 60.
Record the quotient 0 as the next digit in the result. 
Result so far: 3428.4
Deduct 0 from 60 and we're left with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Moving on to step 9:
When dividing 600 by 91, we get 6 with a remainder of 54.
The number 6 becomes the next digit in our result. 
Result so far: 3428.406
Deduct 546 from 600 and we're left with 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

Advancing to step 10:
If we divide 540 by 91, we get 5 and a remainder of 85.
Use 5 as the next digit of our solution. 
Result so far: 3428.4065
If we subtract 455 from 540, we get 85.
Since there are no more digits in the dividend, we add a zero to the remainder making it 850, and continue the process.

Moving on to step 11:
The number 91 fits into 850 9 times, leaving a remainder of 31.
Use 9 as the next digit of our solution. 
Result so far: 3428.40659
If we take 819 away from 850, we end up 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.

Going ahead to step 12:
91 goes into 310 3 times with a remainder of 37.
Record the quotient 3 as the next digit in the result. 
Result so far: 3428.406593
If we take 273 away from 310, 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.

On to step 13:
91 goes into 370 4 times with a remainder of 6.
Put 4 as the next digit of the answer. 
Result so far: 3428.4065934
If we take 364 away from 370, we end up with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

On to step 14:
60 divided by 91 is 0 with a remainder of 60.
Write down 0 as next digit of the result. 
Result so far: 3428.4065934
Deduct 0 from 60 and we're left with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Our division results in 3428.4065934 with a remaining 6e-08.