Let's divide 312286 by 87
Our goal is to divide 312286 by 87.

Moving on to step 1:
87 can be fit into 3 0 times, resulting in a remainder of 3.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 3, we end up with 3.
Grab the next digit (1) from the dividend, add it to 3, then carry on: 31 / 87

Let's proceed to step 2:
The number 87 fits into 31 0 times, leaving a remainder of 31.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 31, we end up with 31.
Grab the next digit (2) from the dividend, add it to 31, then carry on: 312 / 87

Let's proceed to step 3:
312 divided by 87 is 3 with a remainder of 51.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
If we subtract 261 from 312, we get 51.
Bring next digit (2) of the dividend behind the 51 and repeat the process: 512 / 87

Advancing to step 4:
The number 87 fits into 512 5 times, leaving a remainder of 77.
Record the quotient 5 as the next digit in the result. 
Result so far: 35.0
Deduct 435 from 512 and we're left with 77.
Fetch the next digit (8) from the dividend, attach it to 77 and continue: 778 / 87

Advancing to step 5:
87 goes into 778 8 times with a remainder of 82.
The next digit of our result is 8. 
Result so far: 358.0
If we subtract 696 from 778, we get 82.
Fetch the next digit (6) from the dividend, attach it to 82 and continue: 826 / 87

On to step 6:
826 divided by 87 is 9 with a remainder of 43.
Write down 9 as next digit of the result. 
Result so far: 3589.0
Deduct 783 from 826 and we're left with 43.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

On to step 7:
430 divided by 87 is 4 with a remainder of 82.
Record the quotient 4 as the next digit in the result. 
Result so far: 3589.4
The remainder is 82 after subtracting 348 from 430.
Since there are no more digits in the dividend, we add a zero to the remainder making it 820, and continue the process.

Moving on to step 8:
87 goes into 820 9 times with a remainder of 37.
Put 9 as the next digit of the answer. 
Result so far: 3589.49
If we subtract 783 from 820, we get 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

Moving on to step 9:
If we divide 370 by 87, we get 4 and a remainder of 22.
The number 4 becomes the next digit in our result. 
Result so far: 3589.494
Subtracting 348 from 370 leaves us with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Advancing to step 10:
The number 87 fits into 220 2 times, leaving a remainder of 46.
Put 2 as the next digit of the answer. 
Result so far: 3589.4942
If we take 174 away from 220, 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.

Advancing to step 11:
When dividing 460 by 87, we get 5 with a remainder of 25.
Use 5 as the next digit of our solution. 
Result so far: 3589.49425
If we subtract 435 from 460, we get 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Step 12:
If we divide 250 by 87, we get 2 and a remainder of 76.
The next digit of our result is 2. 
Result so far: 3589.494252
Subtracting 174 from 250 leaves us with 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:
87 goes into 760 8 times with a remainder of 64.
Write down 8 as next digit of the result. 
Result so far: 3589.4942528
If we subtract 696 from 760, we get 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Advancing to step 14:
If we divide 640 by 87, we get 7 and a remainder of 31.
Put 7 as the next digit of the answer. 
Result so far: 3589.49425287
Subtract 609 from 640 to get 31.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

In conclusion, the division gives 3589.49425287 with a balance of 3.1e-08.