We look at the division of 406307 by 12 
Let's see how many times 12 fits into 406307.

Going ahead to step 1:
When dividing 4 by 12, we get 0 with a remainder of 4.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 4 after subtracting 0 from 4.
Fetch the next digit (0) from the dividend, attach it to 4 and continue: 40 / 12

Let's proceed to step 2:
12 can be fit into 40 3 times, resulting in a remainder of 4.
Record the quotient 3 as the next digit in the result. 
Result so far: 3.0
Subtract 36 from 40 to get 4.
Include the next digit (6) from the dividend after 4, then repeat: 46 / 12

On to step 3:
12 goes into 46 3 times with a remainder of 10.
Record the quotient 3 as the next digit in the result. 
Result so far: 33.0
Subtracting 36 from 46 leaves us with 10.
Take the next digit (3) from the dividend and append it to 10, then repeat: 103 / 12

Going ahead to step 4:
When dividing 103 by 12, we get 8 with a remainder of 7.
Put 8 as the next digit of the answer. 
Result so far: 338.0
The remainder is 7 after subtracting 96 from 103.
Append the next digit (0) from the dividend to 7 and continue with: 70 / 12

Step 5:
The number 12 fits into 70 5 times, leaving a remainder of 10.
Put 5 as the next digit of the answer. 
Result so far: 3385.0
Subtracting 60 from 70 leaves us with 10.
Bring next digit (7) of the dividend behind the 10 and repeat the process: 107 / 12

Moving on to step 6:
107 divided by 12 is 8 with a remainder of 11.
Record the quotient 8 as the next digit in the result. 
Result so far: 33858.0
If we take 96 away from 107, we end up with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Advancing to step 7:
If we divide 110 by 12, we get 9 and a remainder of 2.
Put 9 as the next digit of the answer. 
Result so far: 33858.9
Subtracting 108 from 110 leaves us with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Moving on to step 8:
20 divided by 12 is 1 with a remainder of 8.
Record the quotient 1 as the next digit in the result. 
Result so far: 33858.91
Subtract 12 from 20 to 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.

Advancing to step 9:
The number 12 fits into 80 6 times, leaving a remainder of 8.
Put 6 as the next digit of the answer. 
Result so far: 33858.916
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.

Step 10:
The number 12 fits into 80 6 times, leaving a remainder of 8.
The next digit of our result is 6. 
Result so far: 33858.9166
Subtract 72 from 80 to 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.

The final result is 33858.9166 with a remainder of 8e-05.