We're dividing 302863 by 87 
We want to divide 302863 by 87.

Step 1:
If we divide 3 by 87, we get 0 and a remainder of 3.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 3 to get 3.
Bring next digit (0) of the dividend behind the 3 and repeat the process: 30 / 87

On to step 2:
The number 87 fits into 30 0 times, leaving a remainder of 30.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 30 leaves us with 30.
Fetch the next digit (2) from the dividend, attach it to 30 and continue: 302 / 87

Moving on to step 3:
When dividing 302 by 87, we get 3 with a remainder of 41.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
Subtracting 261 from 302 leaves us with 41.
Bring next digit (8) of the dividend behind the 41 and repeat the process: 418 / 87

Going ahead to step 4:
If we divide 418 by 87, we get 4 and a remainder of 70.
Put 4 as the next digit of the answer. 
Result so far: 34.0
If we subtract 348 from 418, we get 70.
Include the next digit (6) from the dividend after 70, then repeat: 706 / 87

Moving on to step 5:
87 goes into 706 8 times with a remainder of 10.
Use 8 as the next digit of our solution. 
Result so far: 348.0
If we subtract 696 from 706, we get 10.
Bring next digit (3) of the dividend behind the 10 and repeat the process: 103 / 87

Step 6:
87 can be fit into 103 1 times, resulting in a remainder of 16.
The next digit of our result is 1. 
Result so far: 3481.0
Deduct 87 from 103 and we're left with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

On to step 7:
87 can be fit into 160 1 times, resulting in a remainder of 73.
Write down 1 as next digit of the result. 
Result so far: 3481.1
If we subtract 87 from 160, we get 73.
Since there are no more digits in the dividend, we add a zero to the remainder making it 730, and continue the process.

Going ahead to step 8:
730 divided by 87 is 8 with a remainder of 34.
Write down 8 as next digit of the result. 
Result so far: 3481.18
The remainder is 34 after subtracting 696 from 730.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Let's proceed to step 9:
87 can be fit into 340 3 times, resulting in a remainder of 79.
Use 3 as the next digit of our solution. 
Result so far: 3481.183
If we subtract 261 from 340, we get 79.
Since there are no more digits in the dividend, we add a zero to the remainder making it 790, and continue the process.

Let's proceed to step 10:
When dividing 790 by 87, we get 9 with a remainder of 7.
The number 9 becomes the next digit in our result. 
Result so far: 3481.1839
If we take 783 away from 790, we end up with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Going ahead to step 11:
The number 87 fits into 70 0 times, leaving a remainder of 70.
Write down 0 as next digit of the result. 
Result so far: 3481.1839
If we subtract 0 from 70, we get 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Step 12:
700 divided by 87 is 8 with a remainder of 4.
The next digit of our result is 8. 
Result so far: 3481.183908
If we subtract 696 from 700, 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.

Going ahead to step 13:
The number 87 fits into 40 0 times, leaving a remainder of 40.
The number 0 becomes the next digit in our result. 
Result so far: 3481.183908
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.

Advancing to step 14:
If we divide 400 by 87, we get 4 and a remainder of 52.
The next digit of our result is 4. 
Result so far: 3481.18390804
If we take 348 away from 400, we end up with 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

After the division, we end up with 3481.18390804 and a remainder of 5.2e-08.