We look at the division of 287432 by 86 
Let's see how many times 86 fits into 287432.

Step 1:
When dividing 2 by 86, we get 0 with a remainder of 2.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 2 to get 2.
Bring next digit (8) of the dividend behind the 2 and repeat the process: 28 / 86

Moving on to step 2:
86 can be fit into 28 0 times, resulting in a remainder of 28.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 28 to get 28.
Append the next digit (7) from the dividend to 28 and continue with: 287 / 86

Advancing to step 3:
The number 86 fits into 287 3 times, leaving a remainder of 29.
Record the quotient 3 as the next digit in the result. 
Result so far: 3.0
If we subtract 258 from 287, we get 29.
Append the next digit (4) from the dividend to 29 and continue with: 294 / 86

Advancing to step 4:
86 goes into 294 3 times with a remainder of 36.
The next digit of our result is 3. 
Result so far: 33.0
If we subtract 258 from 294, we get 36.
Append the next digit (3) from the dividend to 36 and continue with: 363 / 86

Moving on to step 5:
When dividing 363 by 86, we get 4 with a remainder of 19.
Record the quotient 4 as the next digit in the result. 
Result so far: 334.0
Subtract 344 from 363 to get 19.
Grab the next digit (2) from the dividend, add it to 19, then carry on: 192 / 86

Moving on to step 6:
The number 86 fits into 192 2 times, leaving a remainder of 20.
The next digit of our result is 2. 
Result so far: 3342.0
Subtract 172 from 192 to 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.

Advancing to step 7:
86 can be fit into 200 2 times, resulting in a remainder of 28.
Use 2 as the next digit of our solution. 
Result so far: 3342.2
Deduct 172 from 200 and we're left with 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Advancing to step 8:
280 divided by 86 is 3 with a remainder of 22.
The next digit of our result is 3. 
Result so far: 3342.23
If we take 258 away from 280, we end up 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.

Going ahead to step 9:
86 can be fit into 220 2 times, resulting in a remainder of 48.
Write down 2 as next digit of the result. 
Result so far: 3342.232
Subtracting 172 from 220 leaves us with 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Going ahead to step 10:
The number 86 fits into 480 5 times, leaving a remainder of 50.
Put 5 as the next digit of the answer. 
Result so far: 3342.2325
Subtract 430 from 480 to get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Going ahead to step 11:
The number 86 fits into 500 5 times, leaving a remainder of 70.
Put 5 as the next digit of the answer. 
Result so far: 3342.23255
If we subtract 430 from 500, 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.

After the division, we end up with 3342.23255 and a remainder of 7e-05.