Let's divide 515966 by 86
We want to divide 515966 by 86.

Advancing to step 1:
If we divide 5 by 86, we get 0 and a remainder of 5.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 5, we end up with 5.
Bring next digit (1) of the dividend behind the 5 and repeat the process: 51 / 86

Going ahead to step 2:
51 divided by 86 is 0 with a remainder of 51.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 51 after subtracting 0 from 51.
Bring next digit (5) of the dividend behind the 51 and repeat the process: 515 / 86

Going ahead to step 3:
515 divided by 86 is 5 with a remainder of 85.
The number 5 becomes the next digit in our result. 
Result so far: 5.0
If we subtract 430 from 515, we get 85.
Append the next digit (9) from the dividend to 85 and continue with: 859 / 86

On to step 4:
859 divided by 86 is 9 with a remainder of 85.
The next digit of our result is 9. 
Result so far: 59.0
If we subtract 774 from 859, we get 85.
Bring next digit (6) of the dividend behind the 85 and repeat the process: 856 / 86

Let's proceed to step 5:
The number 86 fits into 856 9 times, leaving a remainder of 82.
The number 9 becomes the next digit in our result. 
Result so far: 599.0
Deduct 774 from 856 and we're left with 82.
Fetch the next digit (6) from the dividend, attach it to 82 and continue: 826 / 86

Let's proceed to step 6:
When dividing 826 by 86, we get 9 with a remainder of 52.
The number 9 becomes the next digit in our result. 
Result so far: 5999.0
If we subtract 774 from 826, we get 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Advancing to step 7:
If we divide 520 by 86, we get 6 and a remainder of 4.
The next digit of our result is 6. 
Result so far: 5999.6
If we subtract 516 from 520, we get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Moving on to step 8:
40 divided by 86 is 0 with a remainder of 40.
Record the quotient 0 as the next digit in the result. 
Result so far: 5999.6
If we subtract 0 from 40, we get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Step 9:
When dividing 400 by 86, we get 4 with a remainder of 56.
Put 4 as the next digit of the answer. 
Result so far: 5999.604
Subtract 344 from 400 to 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.

Step 10:
If we divide 560 by 86, we get 6 and a remainder of 44.
The number 6 becomes the next digit in our result. 
Result so far: 5999.6046
Subtracting 516 from 560 leaves us with 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 11:
The number 86 fits into 440 5 times, leaving a remainder of 10.
Put 5 as the next digit of the answer. 
Result so far: 5999.60465
If we subtract 430 from 440, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Going ahead to step 12:
If we divide 100 by 86, we get 1 and a remainder of 14.
Write down 1 as next digit of the result. 
Result so far: 5999.604651
Deduct 86 from 100 and we're left 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.

Let's proceed to step 13:
When dividing 140 by 86, we get 1 with a remainder of 54.
The next digit of our result is 1. 
Result so far: 5999.6046511
Subtract 86 from 140 to get 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

In conclusion, the division gives 5999.6046511 with a balance of 5.4e-07.