813820 ÷ 12 
Our goal is to divide 813820 by 12.

Moving on to step 1:
The number 12 fits into 8 0 times, leaving a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Take the next digit (1) from the dividend and append it to 8, then repeat: 81 / 12

Let's proceed to step 2:
81 divided by 12 is 6 with a remainder of 9.
The number 6 becomes the next digit in our result. 
Result so far: 6.0
Subtracting 72 from 81 leaves us with 9.
Append the next digit (3) from the dividend to 9 and continue with: 93 / 12

On to step 3:
12 can be fit into 93 7 times, resulting in a remainder of 9.
Write down 7 as next digit of the result. 
Result so far: 67.0
The remainder is 9 after subtracting 84 from 93.
Include the next digit (8) from the dividend after 9, then repeat: 98 / 12

Advancing to step 4:
98 divided by 12 is 8 with a remainder of 2.
The next digit of our result is 8. 
Result so far: 678.0
Subtracting 96 from 98 leaves us with 2.
Bring next digit (2) of the dividend behind the 2 and repeat the process: 22 / 12

Step 5:
The number 12 fits into 22 1 times, leaving a remainder of 10.
Record the quotient 1 as the next digit in the result. 
Result so far: 6781.0
Subtracting 12 from 22 leaves us with 10.
Grab the next digit (0) from the dividend, add it to 10, then carry on: 100 / 12

Going ahead to step 6:
100 divided by 12 is 8 with a remainder of 4.
The number 8 becomes the next digit in our result. 
Result so far: 67818.0
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.

Going ahead to step 7:
The number 12 fits into 40 3 times, leaving a remainder of 4.
Use 3 as the next digit of our solution. 
Result so far: 67818.3
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.

Step 8:
12 goes into 40 3 times with a remainder of 4.
The number 3 becomes the next digit in our result. 
Result so far: 67818.33
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 67818.33 and a remainder of 0.004.