We look at the division of 86466231 by 511 
Let's see how many times 511 fits into 86466231.

Advancing to step 1:
511 goes into 8 0 times with a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Grab the next digit (6) from the dividend, add it to 8, then carry on: 86 / 511

Advancing to step 2:
When dividing 86 by 511, we get 0 with a remainder of 86.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 86 leaves us with 86.
Fetch the next digit (4) from the dividend, attach it to 86 and continue: 864 / 511

Going ahead to step 3:
864 divided by 511 is 1 with a remainder of 353.
The next digit of our result is 1. 
Result so far: 1.0
Subtracting 511 from 864 leaves us with 353.
Take the next digit (6) from the dividend and append it to 353, then repeat: 3536 / 511

Let's proceed to step 4:
When dividing 3536 by 511, we get 6 with a remainder of 470.
The next digit of our result is 6. 
Result so far: 16.0
Subtracting 3066 from 3536 leaves us with 470.
Fetch the next digit (6) from the dividend, attach it to 470 and continue: 4706 / 511

Step 5:
511 goes into 4706 9 times with a remainder of 107.
The next digit of our result is 9. 
Result so far: 169.0
If we subtract 4599 from 4706, we get 107.
Bring next digit (2) of the dividend behind the 107 and repeat the process: 1072 / 511

Step 6:
When dividing 1072 by 511, we get 2 with a remainder of 50.
The next digit of our result is 2. 
Result so far: 1692.0
Subtracting 1022 from 1072 leaves us with 50.
Include the next digit (3) from the dividend after 50, then repeat: 503 / 511

Going ahead to step 7:
If we divide 503 by 511, we get 0 and a remainder of 503.
The next digit of our result is 0. 
Result so far: 16920.0
If we take 0 away from 503, we end up with 503.
Append the next digit (1) from the dividend to 503 and continue with: 5031 / 511

Step 8:
The number 511 fits into 5031 9 times, leaving a remainder of 432.
The number 9 becomes the next digit in our result. 
Result so far: 169209.0
If we take 4599 away from 5031, we end up with 432.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4320, and continue the process.

Let's proceed to step 9:
When dividing 4320 by 511, we get 8 with a remainder of 232.
Put 8 as the next digit of the answer. 
Result so far: 169209.8
If we take 4088 away from 4320, we end up with 232.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2320, and continue the process.

Step 10:
The number 511 fits into 2320 4 times, leaving a remainder of 276.
Record the quotient 4 as the next digit in the result. 
Result so far: 169209.84
If we take 2044 away from 2320, we end up with 276.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2760, and continue the process.

Advancing to step 11:
511 goes into 2760 5 times with a remainder of 205.
Write down 5 as next digit of the result. 
Result so far: 169209.845
If we subtract 2555 from 2760, we get 205.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2050, and continue the process.

Moving on to step 12:
2050 divided by 511 is 4 with a remainder of 6.
Put 4 as the next digit of the answer. 
Result so far: 169209.8454
Subtracting 2044 from 2050 leaves us with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Advancing to step 13:
The number 511 fits into 60 0 times, leaving a remainder of 60.
Write down 0 as next digit of the result. 
Result so far: 169209.8454
Subtracting 0 from 60 leaves us with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Going ahead to step 14:
600 divided by 511 is 1 with a remainder of 89.
The next digit of our result is 1. 
Result so far: 169209.845401
Deduct 511 from 600 and we're left with 89.
Since there are no more digits in the dividend, we add a zero to the remainder making it 890, and continue the process.

Let's proceed to step 15:
511 goes into 890 1 times with a remainder of 379.
Put 1 as the next digit of the answer. 
Result so far: 169209.8454011
The remainder is 379 after subtracting 511 from 890.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3790, and continue the process.

Our division results in 169209.8454011 with a remaining 3.79e-06.