We look at the division of 816457 by 12 
Our goal is to divide 816457 by 12.

Moving on to step 1:
12 can be fit into 8 0 times, resulting in a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Include the next digit (1) from the dividend after 8, then repeat: 81 / 12

Going ahead to step 2:
When dividing 81 by 12, we get 6 with a remainder of 9.
Write down 6 as next digit of the result. 
Result so far: 6.0
If we subtract 72 from 81, we get 9.
Grab the next digit (6) from the dividend, add it to 9, then carry on: 96 / 12

Going ahead to step 3:
The number 12 fits into 96 8 times, leaving a remainder of 0.
Use 8 as the next digit of our solution. 
Result so far: 68.0
Subtract 96 from 96 to get 0.
Grab the next digit (4) from the dividend, add it to 0, then carry on: 4 / 12

Moving on to step 4:
12 goes into 4 0 times with a remainder of 4.
Put 0 as the next digit of the answer. 
Result so far: 680.0
Deduct 0 from 4 and we're left with 4.
Append the next digit (5) from the dividend to 4 and continue with: 45 / 12

Advancing to step 5:
When dividing 45 by 12, we get 3 with a remainder of 9.
The next digit of our result is 3. 
Result so far: 6803.0
Subtract 36 from 45 to get 9.
Bring next digit (7) of the dividend behind the 9 and repeat the process: 97 / 12

Advancing to step 6:
The number 12 fits into 97 8 times, leaving a remainder of 1.
The next digit of our result is 8. 
Result so far: 68038.0
If we subtract 96 from 97, we get 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Let's proceed to step 7:
12 can be fit into 10 0 times, resulting in a remainder of 10.
Write down 0 as next digit of the result. 
Result so far: 68038.0
The remainder is 10 after subtracting 0 from 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Going ahead to step 8:
100 divided by 12 is 8 with a remainder of 4.
The number 8 becomes the next digit in our result. 
Result so far: 68038.08
Deduct 96 from 100 and we're left 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.

Let's proceed to step 9:
When dividing 40 by 12, we get 3 with a remainder of 4.
The next digit of our result is 3. 
Result so far: 68038.083
Subtract 36 from 40 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.

Step 10:
When dividing 40 by 12, we get 3 with a remainder of 4.
Write down 3 as next digit of the result. 
Result so far: 68038.0833
Deduct 36 from 40 and we're left 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 68038.0833 and a remainder of 4e-05.