86415817 divided by 261 
Our goal is to divide 86415817 by 261.

Going ahead to step 1:
If we divide 8 by 261, we get 0 and a remainder of 8.
Record the quotient 0 as the next digit in the result. 
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 / 261

Let's proceed to step 2:
86 divided by 261 is 0 with a remainder of 86.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 86 leaves us with 86.
Take the next digit (4) from the dividend and append it to 86, then repeat: 864 / 261

Going ahead to step 3:
261 goes into 864 3 times with a remainder of 81.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
If we subtract 783 from 864, we get 81.
Append the next digit (1) from the dividend to 81 and continue with: 811 / 261

Moving on to step 4:
261 goes into 811 3 times with a remainder of 28.
Use 3 as the next digit of our solution. 
Result so far: 33.0
If we take 783 away from 811, we end up with 28.
Fetch the next digit (5) from the dividend, attach it to 28 and continue: 285 / 261

Advancing to step 5:
285 divided by 261 is 1 with a remainder of 24.
Put 1 as the next digit of the answer. 
Result so far: 331.0
Subtract 261 from 285 to get 24.
Take the next digit (8) from the dividend and append it to 24, then repeat: 248 / 261

Moving on to step 6:
261 goes into 248 0 times with a remainder of 248.
The next digit of our result is 0. 
Result so far: 3310.0
If we take 0 away from 248, we end up with 248.
Bring next digit (1) of the dividend behind the 248 and repeat the process: 2481 / 261

Moving on to step 7:
When dividing 2481 by 261, we get 9 with a remainder of 132.
The next digit of our result is 9. 
Result so far: 33109.0
Deduct 2349 from 2481 and we're left with 132.
Take the next digit (7) from the dividend and append it to 132, then repeat: 1327 / 261

Going ahead to step 8:
If we divide 1327 by 261, we get 5 and a remainder of 22.
Write down 5 as next digit of the result. 
Result so far: 331095.0
Subtracting 1305 from 1327 leaves us 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.

Moving on to step 9:
When dividing 220 by 261, we get 0 with a remainder of 220.
Use 0 as the next digit of our solution. 
Result so far: 331095.0
Subtract 0 from 220 to get 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2200, and continue the process.

Step 10:
If we divide 2200 by 261, we get 8 and a remainder of 112.
The number 8 becomes the next digit in our result. 
Result so far: 331095.08
Subtracting 2088 from 2200 leaves us with 112.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1120, and continue the process.

Advancing to step 11:
261 can be fit into 1120 4 times, resulting in a remainder of 76.
The number 4 becomes the next digit in our result. 
Result so far: 331095.084
If we subtract 1044 from 1120, we get 76.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

Going ahead to step 12:
261 goes into 760 2 times with a remainder of 238.
Use 2 as the next digit of our solution. 
Result so far: 331095.0842
If we subtract 522 from 760, we get 238.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2380, and continue the process.

Step 13:
2380 divided by 261 is 9 with a remainder of 31.
Write down 9 as next digit of the result. 
Result so far: 331095.08429
The remainder is 31 after subtracting 2349 from 2380.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

Going ahead to step 14:
310 divided by 261 is 1 with a remainder of 49.
The number 1 becomes the next digit in our result. 
Result so far: 331095.084291
The remainder is 49 after subtracting 261 from 310.
Since there are no more digits in the dividend, we add a zero to the remainder making it 490, and continue the process.

On to step 15:
490 divided by 261 is 1 with a remainder of 229.
Use 1 as the next digit of our solution. 
Result so far: 331095.0842911
Subtracting 261 from 490 leaves us with 229.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2290, and continue the process.

The final outcome is 331095.0842911, with a leftover of 2.29e-06.