807863 ÷ 12 
Let's see how many times 12 fits into 807863.

On to step 1:
12 can be fit into 8 0 times, resulting in a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Fetch the next digit (0) from the dividend, attach it to 8 and continue: 80 / 12

Advancing to step 2:
When dividing 80 by 12, we get 6 with a remainder of 8.
Use 6 as the next digit of our solution. 
Result so far: 6.0
If we subtract 72 from 80, we get 8.
Bring next digit (7) of the dividend behind the 8 and repeat the process: 87 / 12

On to step 3:
12 can be fit into 87 7 times, resulting in a remainder of 3.
The next digit of our result is 7. 
Result so far: 67.0
The remainder is 3 after subtracting 84 from 87.
Include the next digit (8) from the dividend after 3, then repeat: 38 / 12

Advancing to step 4:
The number 12 fits into 38 3 times, leaving a remainder of 2.
Write down 3 as next digit of the result. 
Result so far: 673.0
If we subtract 36 from 38, we get 2.
Include the next digit (6) from the dividend after 2, then repeat: 26 / 12

Advancing to step 5:
When dividing 26 by 12, we get 2 with a remainder of 2.
Use 2 as the next digit of our solution. 
Result so far: 6732.0
Subtract 24 from 26 to get 2.
Take the next digit (3) from the dividend and append it to 2, then repeat: 23 / 12

Going ahead to step 6:
12 can be fit into 23 1 times, resulting in a remainder of 11.
Put 1 as the next digit of the answer. 
Result so far: 67321.0
The remainder is 11 after subtracting 12 from 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Going ahead to step 7:
If we divide 110 by 12, we get 9 and a remainder of 2.
Record the quotient 9 as the next digit in the result. 
Result so far: 67321.9
If we subtract 108 from 110, we get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

On to step 8:
20 divided by 12 is 1 with a remainder of 8.
The next digit of our result is 1. 
Result so far: 67321.91
Deduct 12 from 20 and we're left with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Advancing to step 9:
If we divide 80 by 12, we get 6 and a remainder of 8.
Record the quotient 6 as the next digit in the result. 
Result so far: 67321.916
If we subtract 72 from 80, we get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Step 10:
12 can be fit into 80 6 times, resulting in a remainder of 8.
The next digit of our result is 6. 
Result so far: 67321.9166
If we take 72 away from 80, we end up with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

The final result is 67321.9166 with a remainder of 8e-05.