311991 ÷ 74 
We want to figure out the number of times 311991 can be divided by 74.

Step 1:
74 goes into 3 0 times with 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.
Append the next digit (1) from the dividend to 3 and continue with: 31 / 74

Moving on to step 2:
31 divided by 74 is 0 with a remainder of 31.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 31 and we're left with 31.
Take the next digit (1) from the dividend and append it to 31, then repeat: 311 / 74

Moving on to step 3:
The number 74 fits into 311 4 times, leaving a remainder of 15.
Put 4 as the next digit of the answer. 
Result so far: 4.0
If we take 296 away from 311, we end up with 15.
Grab the next digit (9) from the dividend, add it to 15, then carry on: 159 / 74

On to step 4:
74 can be fit into 159 2 times, resulting in a remainder of 11.
Write down 2 as next digit of the result. 
Result so far: 42.0
The remainder is 11 after subtracting 148 from 159.
Fetch the next digit (9) from the dividend, attach it to 11 and continue: 119 / 74

Let's proceed to step 5:
If we divide 119 by 74, we get 1 and a remainder of 45.
Use 1 as the next digit of our solution. 
Result so far: 421.0
The remainder is 45 after subtracting 74 from 119.
Fetch the next digit (1) from the dividend, attach it to 45 and continue: 451 / 74

On to step 6:
451 divided by 74 is 6 with a remainder of 7.
Put 6 as the next digit of the answer. 
Result so far: 4216.0
The remainder is 7 after subtracting 444 from 451.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Advancing to step 7:
70 divided by 74 is 0 with a remainder of 70.
Write down 0 as next digit of the result. 
Result so far: 4216.0
If we subtract 0 from 70, we get 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Let's proceed to step 8:
If we divide 700 by 74, we get 9 and a remainder of 34.
Use 9 as the next digit of our solution. 
Result so far: 4216.09
Subtracting 666 from 700 leaves us with 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Advancing to step 9:
74 can be fit into 340 4 times, resulting in a remainder of 44.
Use 4 as the next digit of our solution. 
Result so far: 4216.094
The remainder is 44 after subtracting 296 from 340.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Let's proceed to step 10:
When dividing 440 by 74, we get 5 with a remainder of 70.
The next digit of our result is 5. 
Result so far: 4216.0945
Deduct 370 from 440 and we're left with 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Moving on to step 11:
When dividing 700 by 74, we get 9 with a remainder of 34.
The number 9 becomes the next digit in our result. 
Result so far: 4216.09459
If we take 666 away from 700, we end up with 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Advancing to step 12:
The number 74 fits into 340 4 times, leaving a remainder of 44.
Put 4 as the next digit of the answer. 
Result so far: 4216.094594
If we subtract 296 from 340, we get 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

On to step 13:
When dividing 440 by 74, we get 5 with a remainder of 70.
The number 5 becomes the next digit in our result. 
Result so far: 4216.0945945
Subtracting 370 from 440 leaves us with 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Moving on to step 14:
700 divided by 74 is 9 with a remainder of 34.
Use 9 as the next digit of our solution. 
Result so far: 4216.09459459
Subtract 666 from 700 to get 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

The final outcome is 4216.09459459, with a leftover of 3.4e-08.