We look at the division of 864686 by 87 
We're looking to find how many times 87 goes into 864686.

Going ahead to step 1:
The number 87 fits into 8 0 times, leaving a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Fetch the next digit (6) from the dividend, attach it to 8 and continue: 86 / 87

Moving on to step 2:
If we divide 86 by 87, we get 0 and a remainder of 86.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 86 after subtracting 0 from 86.
Grab the next digit (4) from the dividend, add it to 86, then carry on: 864 / 87

Let's proceed to step 3:
87 can be fit into 864 9 times, resulting in a remainder of 81.
Write down 9 as next digit of the result. 
Result so far: 9.0
The remainder is 81 after subtracting 783 from 864.
Take the next digit (6) from the dividend and append it to 81, then repeat: 816 / 87

On to step 4:
When dividing 816 by 87, we get 9 with a remainder of 33.
Use 9 as the next digit of our solution. 
Result so far: 99.0
If we subtract 783 from 816, we get 33.
Include the next digit (8) from the dividend after 33, then repeat: 338 / 87

Step 5:
87 can be fit into 338 3 times, resulting in a remainder of 77.
Record the quotient 3 as the next digit in the result. 
Result so far: 993.0
Deduct 261 from 338 and we're left with 77.
Grab the next digit (6) from the dividend, add it to 77, then carry on: 776 / 87

Moving on to step 6:
87 goes into 776 8 times with a remainder of 80.
Use 8 as the next digit of our solution. 
Result so far: 9938.0
If we subtract 696 from 776, we get 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Step 7:
When dividing 800 by 87, we get 9 with a remainder of 17.
Record the quotient 9 as the next digit in the result. 
Result so far: 9938.9
If we take 783 away from 800, we end up with 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Advancing to step 8:
87 can be fit into 170 1 times, resulting in a remainder of 83.
The next digit of our result is 1. 
Result so far: 9938.91
The remainder is 83 after subtracting 87 from 170.
Since there are no more digits in the dividend, we add a zero to the remainder making it 830, and continue the process.

On to step 9:
If we divide 830 by 87, we get 9 and a remainder of 47.
Record the quotient 9 as the next digit in the result. 
Result so far: 9938.919
If we subtract 783 from 830, we get 47.
Since there are no more digits in the dividend, we add a zero to the remainder making it 470, and continue the process.

Advancing to step 10:
When dividing 470 by 87, we get 5 with a remainder of 35.
The number 5 becomes the next digit in our result. 
Result so far: 9938.9195
Subtract 435 from 470 to get 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Going ahead to step 11:
If we divide 350 by 87, we get 4 and a remainder of 2.
The number 4 becomes the next digit in our result. 
Result so far: 9938.91954
Subtracting 348 from 350 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.

Advancing to step 12:
20 divided by 87 is 0 with a remainder of 20.
Record the quotient 0 as the next digit in the result. 
Result so far: 9938.91954
The remainder is 20 after subtracting 0 from 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

On to step 13:
87 can be fit into 200 2 times, resulting in a remainder of 26.
Put 2 as the next digit of the answer. 
Result so far: 9938.9195402
Subtracting 174 from 200 leaves us 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.

Step 14:
87 can be fit into 260 2 times, resulting in a remainder of 86.
Record the quotient 2 as the next digit in the result. 
Result so far: 9938.91954022
If we subtract 174 from 260, we get 86.
Since there are no more digits in the dividend, we add a zero to the remainder making it 860, and continue the process.

After the division, we end up with 9938.91954022 and a remainder of 8.6e-08.