We're dividing 331597 by 86 
We want to divide 331597 by 86.

Moving on to step 1:
If we divide 3 by 86, we get 0 and a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 3 leaves us with 3.
Include the next digit (3) from the dividend after 3, then repeat: 33 / 86

Let's proceed to step 2:
33 divided by 86 is 0 with a remainder of 33.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 33, we end up with 33.
Append the next digit (1) from the dividend to 33 and continue with: 331 / 86

Let's proceed to step 3:
86 goes into 331 3 times with a remainder of 73.
Use 3 as the next digit of our solution. 
Result so far: 3.0
Deduct 258 from 331 and we're left with 73.
Bring next digit (5) of the dividend behind the 73 and repeat the process: 735 / 86

Let's proceed to step 4:
If we divide 735 by 86, we get 8 and a remainder of 47.
Write down 8 as next digit of the result. 
Result so far: 38.0
If we subtract 688 from 735, we get 47.
Take the next digit (9) from the dividend and append it to 47, then repeat: 479 / 86

Step 5:
The number 86 fits into 479 5 times, leaving a remainder of 49.
Use 5 as the next digit of our solution. 
Result so far: 385.0
The remainder is 49 after subtracting 430 from 479.
Take the next digit (7) from the dividend and append it to 49, then repeat: 497 / 86

Going ahead to step 6:
When dividing 497 by 86, we get 5 with a remainder of 67.
Put 5 as the next digit of the answer. 
Result so far: 3855.0
If we subtract 430 from 497, we get 67.
Since there are no more digits in the dividend, we add a zero to the remainder making it 670, and continue the process.

Going ahead to step 7:
670 divided by 86 is 7 with a remainder of 68.
The number 7 becomes the next digit in our result. 
Result so far: 3855.7
Subtract 602 from 670 to get 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Advancing to step 8:
If we divide 680 by 86, we get 7 and a remainder of 78.
The next digit of our result is 7. 
Result so far: 3855.77
Subtracting 602 from 680 leaves us with 78.
Since there are no more digits in the dividend, we add a zero to the remainder making it 780, and continue the process.

In conclusion, the division gives 3855.77 with a balance of 0.078.