Let's divide 865819 by 12
Our goal is to divide 865819 by 12.

On to step 1:
12 goes into 8 0 times with a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Grab the next digit (6) from the dividend, add it to 8, then carry on: 86 / 12

Let's proceed to step 2:
12 goes into 86 7 times with a remainder of 2.
Write down 7 as next digit of the result. 
Result so far: 7.0
If we take 84 away from 86, we end up with 2.
Include the next digit (5) from the dividend after 2, then repeat: 25 / 12

Moving on to step 3:
12 goes into 25 2 times with a remainder of 1.
Put 2 as the next digit of the answer. 
Result so far: 72.0
If we subtract 24 from 25, we get 1.
Grab the next digit (8) from the dividend, add it to 1, then carry on: 18 / 12

Advancing to step 4:
If we divide 18 by 12, we get 1 and a remainder of 6.
Record the quotient 1 as the next digit in the result. 
Result so far: 721.0
Subtracting 12 from 18 leaves us with 6.
Fetch the next digit (1) from the dividend, attach it to 6 and continue: 61 / 12

Going ahead to step 5:
When dividing 61 by 12, we get 5 with a remainder of 1.
Use 5 as the next digit of our solution. 
Result so far: 7215.0
If we take 60 away from 61, we end up with 1.
Grab the next digit (9) from the dividend, add it to 1, then carry on: 19 / 12

Moving on to step 6:
12 can be fit into 19 1 times, resulting in a remainder of 7.
Record the quotient 1 as the next digit in the result. 
Result so far: 72151.0
Deduct 12 from 19 and we're left with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Let's proceed to step 7:
12 can be fit into 70 5 times, resulting in a remainder of 10.
The number 5 becomes the next digit in our result. 
Result so far: 72151.5
The remainder is 10 after subtracting 60 from 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Moving on to step 8:
100 divided by 12 is 8 with a remainder of 4.
The next digit of our result is 8. 
Result so far: 72151.58
The remainder is 4 after subtracting 96 from 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

On to step 9:
The number 12 fits into 40 3 times, leaving a remainder of 4.
The number 3 becomes the next digit in our result. 
Result so far: 72151.583
The remainder is 4 after subtracting 36 from 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Let's proceed to step 10:
40 divided by 12 is 3 with a remainder of 4.
The next digit of our result is 3. 
Result so far: 72151.5833
Subtracting 36 from 40 leaves us with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

The final result is 72151.5833 with a remainder of 4e-05.