865784 divided by 86 
Our goal is to divide 865784 by 86.

Step 1:
If we divide 8 by 86, we get 0 and 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 / 86

Going ahead to step 2:
86 divided by 86 is 1 with a remainder of 0.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we subtract 86 from 86, we get 0.
Take the next digit (5) from the dividend and append it to 0, then repeat: 5 / 86

Step 3:
When dividing 5 by 86, we get 0 with a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 10.0
If we take 0 away from 5, we end up with 5.
Grab the next digit (7) from the dividend, add it to 5, then carry on: 57 / 86

Moving on to step 4:
57 divided by 86 is 0 with a remainder of 57.
Write down 0 as next digit of the result. 
Result so far: 100.0
Subtract 0 from 57 to get 57.
Bring next digit (8) of the dividend behind the 57 and repeat the process: 578 / 86

Going ahead to step 5:
578 divided by 86 is 6 with a remainder of 62.
Write down 6 as next digit of the result. 
Result so far: 1006.0
The remainder is 62 after subtracting 516 from 578.
Append the next digit (4) from the dividend to 62 and continue with: 624 / 86

Advancing to step 6:
624 divided by 86 is 7 with a remainder of 22.
Record the quotient 7 as the next digit in the result. 
Result so far: 10067.0
Subtracting 602 from 624 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.

On to step 7:
If we divide 220 by 86, we get 2 and a remainder of 48.
The next digit of our result is 2. 
Result so far: 10067.2
If we subtract 172 from 220, we 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 8:
When dividing 480 by 86, we get 5 with a remainder of 50.
Record the quotient 5 as the next digit in the result. 
Result so far: 10067.25
If we subtract 430 from 480, we get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Step 9:
86 goes into 500 5 times with a remainder of 70.
Use 5 as the next digit of our solution. 
Result so far: 10067.255
Subtracting 430 from 500 leaves us 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.

After the division, we end up with 10067.255 and a remainder of 0.007.