We look at the division of 863757 by 86 
Let's see how many times 86 fits into 863757.

Going ahead to step 1:
When dividing 8 by 86, we get 0 with a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Take the next digit (6) from the dividend and append it to 8, then repeat: 86 / 86

Advancing to step 2:
The number 86 fits into 86 1 times, leaving a remainder of 0.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Deduct 86 from 86 and we're left with 0.
Append the next digit (3) from the dividend to 0 and continue with: 3 / 86

Advancing to step 3:
86 goes into 3 0 times with a remainder of 3.
Record the quotient 0 as the next digit in the result. 
Result so far: 10.0
Subtracting 0 from 3 leaves us with 3.
Include the next digit (7) from the dividend after 3, then repeat: 37 / 86

Let's proceed to step 4:
37 divided by 86 is 0 with a remainder of 37.
The number 0 becomes the next digit in our result. 
Result so far: 100.0
If we subtract 0 from 37, we get 37.
Bring next digit (5) of the dividend behind the 37 and repeat the process: 375 / 86

Advancing to step 5:
86 goes into 375 4 times with a remainder of 31.
The number 4 becomes the next digit in our result. 
Result so far: 1004.0
If we take 344 away from 375, we end up with 31.
Include the next digit (7) from the dividend after 31, then repeat: 317 / 86

On to step 6:
86 goes into 317 3 times with a remainder of 59.
Use 3 as the next digit of our solution. 
Result so far: 10043.0
Subtracting 258 from 317 leaves us with 59.
Since there are no more digits in the dividend, we add a zero to the remainder making it 590, and continue the process.

Let's proceed to step 7:
590 divided by 86 is 6 with a remainder of 74.
Write down 6 as next digit of the result. 
Result so far: 10043.6
Deduct 516 from 590 and we're left with 74.
Since there are no more digits in the dividend, we add a zero to the remainder making it 740, and continue the process.

Going ahead to step 8:
When dividing 740 by 86, we get 8 with a remainder of 52.
Record the quotient 8 as the next digit in the result. 
Result so far: 10043.68
The remainder is 52 after subtracting 688 from 740.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

On to step 9:
86 goes into 520 6 times with a remainder of 4.
The next digit of our result is 6. 
Result so far: 10043.686
If we take 516 away from 520, we end up with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Advancing to step 10:
The number 86 fits into 40 0 times, leaving a remainder of 40.
Record the quotient 0 as the next digit in the result. 
Result so far: 10043.686
Deduct 0 from 40 and we're left with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Moving on to step 11:
If we divide 400 by 86, we get 4 and a remainder of 56.
The number 4 becomes the next digit in our result. 
Result so far: 10043.68604
If we subtract 344 from 400, we get 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

On to step 12:
560 divided by 86 is 6 with a remainder of 44.
Record the quotient 6 as the next digit in the result. 
Result so far: 10043.686046
The remainder is 44 after subtracting 516 from 560.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Step 13:
If we divide 440 by 86, we get 5 and a remainder of 10.
The number 5 becomes the next digit in our result. 
Result so far: 10043.6860465
If we take 430 away from 440, we end up with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Step 14:
100 divided by 86 is 1 with a remainder of 14.
Write down 1 as next digit of the result. 
Result so far: 10043.68604651
If we take 86 away from 100, we end up with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

After the division, we end up with 10043.68604651 and a remainder of 1.4e-08.