86524578 ÷ 331 
Let's see how many times 331 fits into 86524578.

Step 1:
When dividing 8 by 331, we get 0 with a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Include the next digit (6) from the dividend after 8, then repeat: 86 / 331

Going ahead to step 2:
331 goes into 86 0 times with a remainder of 86.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 86 leaves us with 86.
Take the next digit (5) from the dividend and append it to 86, then repeat: 865 / 331

On to step 3:
331 can be fit into 865 2 times, resulting in a remainder of 203.
Put 2 as the next digit of the answer. 
Result so far: 2.0
If we subtract 662 from 865, we get 203.
Take the next digit (2) from the dividend and append it to 203, then repeat: 2032 / 331

Let's proceed to step 4:
2032 divided by 331 is 6 with a remainder of 46.
Use 6 as the next digit of our solution. 
Result so far: 26.0
Subtracting 1986 from 2032 leaves us with 46.
Take the next digit (4) from the dividend and append it to 46, then repeat: 464 / 331

Going ahead to step 5:
If we divide 464 by 331, we get 1 and a remainder of 133.
Record the quotient 1 as the next digit in the result. 
Result so far: 261.0
The remainder is 133 after subtracting 331 from 464.
Take the next digit (5) from the dividend and append it to 133, then repeat: 1335 / 331

On to step 6:
The number 331 fits into 1335 4 times, leaving a remainder of 11.
Write down 4 as next digit of the result. 
Result so far: 2614.0
If we take 1324 away from 1335, we end up with 11.
Fetch the next digit (7) from the dividend, attach it to 11 and continue: 117 / 331

Advancing to step 7:
When dividing 117 by 331, we get 0 with a remainder of 117.
Record the quotient 0 as the next digit in the result. 
Result so far: 26140.0
Deduct 0 from 117 and we're left with 117.
Bring next digit (8) of the dividend behind the 117 and repeat the process: 1178 / 331

Let's proceed to step 8:
1178 divided by 331 is 3 with a remainder of 185.
Write down 3 as next digit of the result. 
Result so far: 261403.0
If we subtract 993 from 1178, we get 185.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1850, and continue the process.

Let's proceed to step 9:
When dividing 1850 by 331, we get 5 with a remainder of 195.
Put 5 as the next digit of the answer. 
Result so far: 261403.5
Deduct 1655 from 1850 and we're left with 195.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1950, and continue the process.

Let's proceed to step 10:
331 can be fit into 1950 5 times, resulting in a remainder of 295.
Record the quotient 5 as the next digit in the result. 
Result so far: 261403.55
Subtract 1655 from 1950 to get 295.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2950, and continue the process.

The final outcome is 261403.55, with a leftover of 0.295.