Let's divide 336831 by 86
Let's see how many times 86 fits into 336831.

Going ahead to step 1:
3 divided by 86 is 0 with a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 3 and we're left with 3.
Fetch the next digit (3) from the dividend, attach it to 3 and continue: 33 / 86

Advancing to step 2:
If we divide 33 by 86, we get 0 and a remainder of 33.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 33 after subtracting 0 from 33.
Include the next digit (6) from the dividend after 33, then repeat: 336 / 86

Step 3:
If we divide 336 by 86, we get 3 and a remainder of 78.
Put 3 as the next digit of the answer. 
Result so far: 3.0
Deduct 258 from 336 and we're left with 78.
Take the next digit (8) from the dividend and append it to 78, then repeat: 788 / 86

Going ahead to step 4:
If we divide 788 by 86, we get 9 and a remainder of 14.
The next digit of our result is 9. 
Result so far: 39.0
Deduct 774 from 788 and we're left with 14.
Bring next digit (3) of the dividend behind the 14 and repeat the process: 143 / 86

Going ahead to step 5:
86 can be fit into 143 1 times, resulting in a remainder of 57.
The number 1 becomes the next digit in our result. 
Result so far: 391.0
If we take 86 away from 143, we end up with 57.
Take the next digit (1) from the dividend and append it to 57, then repeat: 571 / 86

Step 6:
The number 86 fits into 571 6 times, leaving a remainder of 55.
Write down 6 as next digit of the result. 
Result so far: 3916.0
The remainder is 55 after subtracting 516 from 571.
Since there are no more digits in the dividend, we add a zero to the remainder making it 550, and continue the process.

Advancing to step 7:
550 divided by 86 is 6 with a remainder of 34.
Use 6 as the next digit of our solution. 
Result so far: 3916.6
If we take 516 away from 550, 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 8:
The number 86 fits into 340 3 times, leaving a remainder of 82.
Put 3 as the next digit of the answer. 
Result so far: 3916.63
Subtracting 258 from 340 leaves us with 82.
Since there are no more digits in the dividend, we add a zero to the remainder making it 820, and continue the process.

Step 9:
The number 86 fits into 820 9 times, leaving a remainder of 46.
The next digit of our result is 9. 
Result so far: 3916.639
If we take 774 away from 820, we end up 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.

On to step 10:
The number 86 fits into 460 5 times, leaving a remainder of 30.
Record the quotient 5 as the next digit in the result. 
Result so far: 3916.6395
Deduct 430 from 460 and we're left with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Step 11:
When dividing 300 by 86, we get 3 with a remainder of 42.
Use 3 as the next digit of our solution. 
Result so far: 3916.63953
Subtract 258 from 300 to get 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Going ahead to step 12:
The number 86 fits into 420 4 times, leaving a remainder of 76.
Put 4 as the next digit of the answer. 
Result so far: 3916.639534
Subtract 344 from 420 to get 76.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

Let's proceed to step 13:
760 divided by 86 is 8 with a remainder of 72.
The next digit of our result is 8. 
Result so far: 3916.6395348
Subtracting 688 from 760 leaves us with 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

Let's proceed to step 14:
86 goes into 720 8 times with a remainder of 32.
Record the quotient 8 as the next digit in the result. 
Result so far: 3916.63953488
Subtract 688 from 720 to get 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

In conclusion, the division gives 3916.63953488 with a balance of 3.2e-08.