We're dividing 287999 by 87 
We want to divide 287999 by 87.

Step 1:
2 divided by 87 is 0 with a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 2 to get 2.
Grab the next digit (8) from the dividend, add it to 2, then carry on: 28 / 87

Advancing to step 2:
87 can be fit into 28 0 times, resulting in a remainder of 28.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 28 after subtracting 0 from 28.
Bring next digit (7) of the dividend behind the 28 and repeat the process: 287 / 87

Step 3:
If we divide 287 by 87, we get 3 and a remainder of 26.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
The remainder is 26 after subtracting 261 from 287.
Grab the next digit (9) from the dividend, add it to 26, then carry on: 269 / 87

Step 4:
The number 87 fits into 269 3 times, leaving a remainder of 8.
The next digit of our result is 3. 
Result so far: 33.0
The remainder is 8 after subtracting 261 from 269.
Take the next digit (9) from the dividend and append it to 8, then repeat: 89 / 87

On to step 5:
87 can be fit into 89 1 times, resulting in a remainder of 2.
Write down 1 as next digit of the result. 
Result so far: 331.0
If we subtract 87 from 89, we get 2.
Grab the next digit (9) from the dividend, add it to 2, then carry on: 29 / 87

On to step 6:
When dividing 29 by 87, we get 0 with a remainder of 29.
Record the quotient 0 as the next digit in the result. 
Result so far: 3310.0
Subtracting 0 from 29 leaves us with 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

Moving on to step 7:
The number 87 fits into 290 3 times, leaving a remainder of 29.
The number 3 becomes the next digit in our result. 
Result so far: 3310.3
Deduct 261 from 290 and we're left with 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

On to step 8:
290 divided by 87 is 3 with a remainder of 29.
Use 3 as the next digit of our solution. 
Result so far: 3310.33
Subtracting 261 from 290 leaves us with 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

The final outcome is 3310.33, with a leftover of 0.029.