866323 divided by 86 
Our goal is to divide 866323 by 86.

Moving on to step 1:
If we divide 8 by 86, we get 0 and a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Bring next digit (6) of the dividend behind the 8 and repeat the process: 86 / 86

Step 2:
86 goes into 86 1 times with a remainder of 0.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtracting 86 from 86 leaves us with 0.
Append the next digit (6) from the dividend to 0 and continue with: 6 / 86

Let's proceed to step 3:
86 can be fit into 6 0 times, resulting in a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 10.0
The remainder is 6 after subtracting 0 from 6.
Take the next digit (3) from the dividend and append it to 6, then repeat: 63 / 86

Step 4:
When dividing 63 by 86, we get 0 with a remainder of 63.
Record the quotient 0 as the next digit in the result. 
Result so far: 100.0
The remainder is 63 after subtracting 0 from 63.
Append the next digit (2) from the dividend to 63 and continue with: 632 / 86

Moving on to step 5:
86 can be fit into 632 7 times, resulting in a remainder of 30.
Record the quotient 7 as the next digit in the result. 
Result so far: 1007.0
The remainder is 30 after subtracting 602 from 632.
Fetch the next digit (3) from the dividend, attach it to 30 and continue: 303 / 86

Moving on to step 6:
If we divide 303 by 86, we get 3 and a remainder of 45.
Write down 3 as next digit of the result. 
Result so far: 10073.0
Deduct 258 from 303 and we're left with 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

Let's proceed to step 7:
450 divided by 86 is 5 with a remainder of 20.
Use 5 as the next digit of our solution. 
Result so far: 10073.5
Subtract 430 from 450 to get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Moving on to step 8:
86 goes into 200 2 times with a remainder of 28.
The next digit of our result is 2. 
Result so far: 10073.52
Deduct 172 from 200 and we're left with 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Moving on to step 9:
The number 86 fits into 280 3 times, leaving a remainder of 22.
Write down 3 as next digit of the result. 
Result so far: 10073.523
If we take 258 away from 280, we end up 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.

Advancing to step 10:
86 goes into 220 2 times with a remainder of 48.
The number 2 becomes the next digit in our result. 
Result so far: 10073.5232
Subtract 172 from 220 to get 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

On to step 11:
480 divided by 86 is 5 with a remainder of 50.
Use 5 as the next digit of our solution. 
Result so far: 10073.52325
If we take 430 away from 480, we end up with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Moving on to step 12:
86 goes into 500 5 times with a remainder of 70.
Write down 5 as next digit of the result. 
Result so far: 10073.523255
If we take 430 away from 500, we end up with 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

The final outcome is 10073.523255, with a leftover of 7e-06.