Let's divide 809253 by 12
We're looking to find how many times 12 goes into 809253.

Moving on to step 1:
If we divide 8 by 12, we get 0 and a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Append the next digit (0) from the dividend to 8 and continue with: 80 / 12

Advancing to step 2:
12 can be fit into 80 6 times, resulting in a remainder of 8.
Use 6 as the next digit of our solution. 
Result so far: 6.0
Deduct 72 from 80 and we're left with 8.
Take the next digit (9) from the dividend and append it to 8, then repeat: 89 / 12

Advancing to step 3:
12 goes into 89 7 times with a remainder of 5.
Write down 7 as next digit of the result. 
Result so far: 67.0
Subtracting 84 from 89 leaves us with 5.
Include the next digit (2) from the dividend after 5, then repeat: 52 / 12

On to step 4:
If we divide 52 by 12, we get 4 and a remainder of 4.
Put 4 as the next digit of the answer. 
Result so far: 674.0
If we take 48 away from 52, we end up with 4.
Fetch the next digit (5) from the dividend, attach it to 4 and continue: 45 / 12

Going ahead to step 5:
12 can be fit into 45 3 times, resulting in a remainder of 9.
Use 3 as the next digit of our solution. 
Result so far: 6743.0
The remainder is 9 after subtracting 36 from 45.
Bring next digit (3) of the dividend behind the 9 and repeat the process: 93 / 12

Moving on to step 6:
12 can be fit into 93 7 times, resulting in a remainder of 9.
The next digit of our result is 7. 
Result so far: 67437.0
Subtract 84 from 93 to get 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

On to step 7:
90 divided by 12 is 7 with a remainder of 6.
Use 7 as the next digit of our solution. 
Result so far: 67437.7
Subtract 84 from 90 to get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Going ahead to step 8:
12 can be fit into 60 5 times, resulting in a remainder of 0.
Record the quotient 5 as the next digit in the result. 
Result so far: 67437.75
Subtract 60 from 60 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

On to step 9:
12 goes into 0 0 times with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 67437.75
Subtract 0 from 0 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Let's proceed to step 10:
0 divided by 12 is 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 67437.75
If we subtract 0 from 0, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The final outcome is 67437.75, with a leftover of 0.0.