We look at the division of 862397 by 86 
We're looking to find how many times 86 goes into 862397.

Advancing to step 1:
When dividing 8 by 86, we get 0 with a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Take the next digit (6) from the dividend and append it to 8, then repeat: 86 / 86

Going ahead to step 2:
If we divide 86 by 86, we get 1 and a remainder of 0.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Deduct 86 from 86 and we're left with 0.
Take the next digit (2) from the dividend and append it to 0, then repeat: 2 / 86

Going ahead to step 3:
86 can be fit into 2 0 times, resulting in a remainder of 2.
Write down 0 as next digit of the result. 
Result so far: 10.0
Subtracting 0 from 2 leaves us with 2.
Take the next digit (3) from the dividend and append it to 2, then repeat: 23 / 86

On to step 4:
86 can be fit into 23 0 times, resulting in a remainder of 23.
Write down 0 as next digit of the result. 
Result so far: 100.0
If we take 0 away from 23, we end up with 23.
Include the next digit (9) from the dividend after 23, then repeat: 239 / 86

On to step 5:
86 goes into 239 2 times with a remainder of 67.
Put 2 as the next digit of the answer. 
Result so far: 1002.0
Subtract 172 from 239 to get 67.
Take the next digit (7) from the dividend and append it to 67, then repeat: 677 / 86

Let's proceed to step 6:
677 divided by 86 is 7 with a remainder of 75.
The next digit of our result is 7. 
Result so far: 10027.0
Deduct 602 from 677 and we're left with 75.
Since there are no more digits in the dividend, we add a zero to the remainder making it 750, and continue the process.

Advancing to step 7:
86 can be fit into 750 8 times, resulting in a remainder of 62.
The number 8 becomes the next digit in our result. 
Result so far: 10027.8
Deduct 688 from 750 and we're left with 62.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

Advancing to step 8:
620 divided by 86 is 7 with a remainder of 18.
Write down 7 as next digit of the result. 
Result so far: 10027.87
Subtract 602 from 620 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.

Moving on to step 9:
The number 86 fits into 180 2 times, leaving a remainder of 8.
Put 2 as the next digit of the answer. 
Result so far: 10027.872
Subtract 172 from 180 to get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Let's proceed to step 10:
The number 86 fits into 80 0 times, leaving a remainder of 80.
Put 0 as the next digit of the answer. 
Result so far: 10027.872
The remainder is 80 after subtracting 0 from 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

On to step 11:
When dividing 800 by 86, we get 9 with a remainder of 26.
Write down 9 as next digit of the result. 
Result so far: 10027.87209
Deduct 774 from 800 and we're left with 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

On to step 12:
86 can be fit into 260 3 times, resulting in a remainder of 2.
Put 3 as the next digit of the answer. 
Result so far: 10027.872093
Subtracting 258 from 260 leaves us with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Step 13:
86 can be fit into 20 0 times, resulting in a remainder of 20.
The number 0 becomes the next digit in our result. 
Result so far: 10027.872093
If we subtract 0 from 20, we get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Step 14:
The number 86 fits into 200 2 times, leaving a remainder of 28.
Put 2 as the next digit of the answer. 
Result so far: 10027.87209302
Subtract 172 from 200 to get 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

The final result is 10027.87209302 with a remainder of 2.8e-08.