311985 ÷ 51 
We want to divide 311985 by 51.

Step 1:
3 divided by 51 is 0 with a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 3 leaves us with 3.
Take the next digit (1) from the dividend and append it to 3, then repeat: 31 / 51

Going ahead to step 2:
31 divided by 51 is 0 with a remainder of 31.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 31, we get 31.
Bring next digit (1) of the dividend behind the 31 and repeat the process: 311 / 51

Moving on to step 3:
When dividing 311 by 51, we get 6 with a remainder of 5.
The number 6 becomes the next digit in our result. 
Result so far: 6.0
Subtracting 306 from 311 leaves us with 5.
Include the next digit (9) from the dividend after 5, then repeat: 59 / 51

On to step 4:
The number 51 fits into 59 1 times, leaving a remainder of 8.
Put 1 as the next digit of the answer. 
Result so far: 61.0
Subtracting 51 from 59 leaves us with 8.
Include the next digit (8) from the dividend after 8, then repeat: 88 / 51

Moving on to step 5:
If we divide 88 by 51, we get 1 and a remainder of 37.
The next digit of our result is 1. 
Result so far: 611.0
Subtract 51 from 88 to get 37.
Take the next digit (5) from the dividend and append it to 37, then repeat: 375 / 51

Moving on to step 6:
51 goes into 375 7 times with a remainder of 18.
The next digit of our result is 7. 
Result so far: 6117.0
Subtract 357 from 375 to get 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Step 7:
51 can be fit into 180 3 times, resulting in a remainder of 27.
Use 3 as the next digit of our solution. 
Result so far: 6117.3
The remainder is 27 after subtracting 153 from 180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

Going ahead to step 8:
51 can be fit into 270 5 times, resulting in a remainder of 15.
The number 5 becomes the next digit in our result. 
Result so far: 6117.35
Subtracting 255 from 270 leaves us with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

On to step 9:
When dividing 150 by 51, we get 2 with a remainder of 48.
Use 2 as the next digit of our solution. 
Result so far: 6117.352
Deduct 102 from 150 and we're left with 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Step 10:
The number 51 fits into 480 9 times, leaving a remainder of 21.
Write down 9 as next digit of the result. 
Result so far: 6117.3529
Deduct 459 from 480 and we're left with 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

On to step 11:
51 goes into 210 4 times with a remainder of 6.
The next digit of our result is 4. 
Result so far: 6117.35294
If we subtract 204 from 210, 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.

Advancing to step 12:
If we divide 60 by 51, we get 1 and a remainder of 9.
Put 1 as the next digit of the answer. 
Result so far: 6117.352941
Subtract 51 from 60 to get 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Step 13:
51 can be fit into 90 1 times, resulting in a remainder of 39.
Use 1 as the next digit of our solution. 
Result so far: 6117.3529411
If we take 51 away from 90, we end up with 39.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

The final result is 6117.3529411 with a remainder of 3.9e-07.