809239 divided by 12 
We want to figure out the number of times 809239 can be divided by 12.

Going ahead to step 1:
8 divided by 12 is 0 with a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Grab the next digit (0) from the dividend, add it to 8, then carry on: 80 / 12

Advancing to step 2:
12 can be fit into 80 6 times, resulting in a remainder of 8.
Put 6 as the next digit of the answer. 
Result so far: 6.0
Subtract 72 from 80 to get 8.
Grab the next digit (9) from the dividend, add it to 8, then carry on: 89 / 12

On to step 3:
12 can be fit into 89 7 times, resulting in a remainder of 5.
Record the quotient 7 as the next digit in the result. 
Result so far: 67.0
If we subtract 84 from 89, we get 5.
Take the next digit (2) from the dividend and append it to 5, then repeat: 52 / 12

Moving on to step 4:
12 goes into 52 4 times with a remainder of 4.
Write down 4 as next digit of the result. 
Result so far: 674.0
If we take 48 away from 52, we end up with 4.
Include the next digit (3) from the dividend after 4, then repeat: 43 / 12

Let's proceed to step 5:
When dividing 43 by 12, we get 3 with a remainder of 7.
Record the quotient 3 as the next digit in the result. 
Result so far: 6743.0
If we subtract 36 from 43, we get 7.
Fetch the next digit (9) from the dividend, attach it to 7 and continue: 79 / 12

On to step 6:
If we divide 79 by 12, we get 6 and a remainder of 7.
The next digit of our result is 6. 
Result so far: 67436.0
Subtract 72 from 79 to get 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Step 7:
If we divide 70 by 12, we get 5 and a remainder of 10.
Write down 5 as next digit of the result. 
Result so far: 67436.5
If we subtract 60 from 70, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Advancing to step 8:
100 divided by 12 is 8 with a remainder of 4.
Use 8 as the next digit of our solution. 
Result so far: 67436.58
Subtract 96 from 100 to get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Advancing to step 9:
40 divided by 12 is 3 with a remainder of 4.
The number 3 becomes the next digit in our result. 
Result so far: 67436.583
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.

Going ahead to step 10:
When dividing 40 by 12, we get 3 with a remainder of 4.
Put 3 as the next digit of the answer. 
Result so far: 67436.5833
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.

After the division, we end up with 67436.5833 and a remainder of 4e-05.