We're dividing 308257 by 86 
Let's see how many times 86 fits into 308257.

Moving on to step 1:
When dividing 3 by 86, we get 0 with a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 3 to get 3.
Take the next digit (0) from the dividend and append it to 3, then repeat: 30 / 86

On to step 2:
86 can be fit into 30 0 times, resulting in a remainder of 30.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 30 to get 30.
Include the next digit (8) from the dividend after 30, then repeat: 308 / 86

Step 3:
86 goes into 308 3 times with a remainder of 50.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
If we take 258 away from 308, we end up with 50.
Include the next digit (2) from the dividend after 50, then repeat: 502 / 86

Step 4:
If we divide 502 by 86, we get 5 and a remainder of 72.
Write down 5 as next digit of the result. 
Result so far: 35.0
Deduct 430 from 502 and we're left with 72.
Fetch the next digit (5) from the dividend, attach it to 72 and continue: 725 / 86

Let's proceed to step 5:
When dividing 725 by 86, we get 8 with a remainder of 37.
Write down 8 as next digit of the result. 
Result so far: 358.0
The remainder is 37 after subtracting 688 from 725.
Grab the next digit (7) from the dividend, add it to 37, then carry on: 377 / 86

Advancing to step 6:
86 goes into 377 4 times with a remainder of 33.
Record the quotient 4 as the next digit in the result. 
Result so far: 3584.0
If we subtract 344 from 377, we get 33.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

Step 7:
If we divide 330 by 86, we get 3 and a remainder of 72.
Write down 3 as next digit of the result. 
Result so far: 3584.3
Subtracting 258 from 330 leaves us with 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

Going ahead to step 8:
The number 86 fits into 720 8 times, leaving a remainder of 32.
Record the quotient 8 as the next digit in the result. 
Result so far: 3584.38
Subtracting 688 from 720 leaves us with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Let's proceed to step 9:
If we divide 320 by 86, we get 3 and a remainder of 62.
The number 3 becomes the next digit in our result. 
Result so far: 3584.383
Subtracting 258 from 320 leaves us with 62.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

Moving on to step 10:
86 can be fit into 620 7 times, resulting in a remainder of 18.
Put 7 as the next digit of the answer. 
Result so far: 3584.3837
If we subtract 602 from 620, we get 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Let's proceed to step 11:
86 can be fit into 180 2 times, resulting in a remainder of 8.
Use 2 as the next digit of our solution. 
Result so far: 3584.38372
If we take 172 away from 180, we end up with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Let's proceed to step 12:
86 goes into 80 0 times with a remainder of 80.
Write down 0 as next digit of the result. 
Result so far: 3584.38372
If we subtract 0 from 80, 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.

Moving on to step 13:
800 divided by 86 is 9 with a remainder of 26.
Record the quotient 9 as the next digit in the result. 
Result so far: 3584.3837209
Subtracting 774 from 800 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.

On to step 14:
260 divided by 86 is 3 with a remainder of 2.
The next digit of our result is 3. 
Result so far: 3584.38372093
The remainder is 2 after subtracting 258 from 260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

The final result is 3584.38372093 with a remainder of 2e-09.