We're dividing 402068 by 12 
We want to figure out the number of times 402068 can be divided by 12.

Going ahead to step 1:
The number 12 fits into 4 0 times, leaving a remainder of 4.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 4 leaves us with 4.
Bring next digit (0) of the dividend behind the 4 and repeat the process: 40 / 12

Going ahead to step 2:
If we divide 40 by 12, we get 3 and a remainder of 4.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
Subtract 36 from 40 to get 4.
Fetch the next digit (2) from the dividend, attach it to 4 and continue: 42 / 12

Moving on to step 3:
42 divided by 12 is 3 with a remainder of 6.
Write down 3 as next digit of the result. 
Result so far: 33.0
The remainder is 6 after subtracting 36 from 42.
Append the next digit (0) from the dividend to 6 and continue with: 60 / 12

Let's proceed to step 4:
The number 12 fits into 60 5 times, leaving a remainder of 0.
Use 5 as the next digit of our solution. 
Result so far: 335.0
If we take 60 away from 60, we end up with 0.
Bring next digit (6) of the dividend behind the 0 and repeat the process: 6 / 12

On to step 5:
12 can be fit into 6 0 times, resulting in a remainder of 6.
The next digit of our result is 0. 
Result so far: 3350.0
Subtract 0 from 6 to get 6.
Grab the next digit (8) from the dividend, add it to 6, then carry on: 68 / 12

Advancing to step 6:
When dividing 68 by 12, we get 5 with a remainder of 8.
Use 5 as the next digit of our solution. 
Result so far: 33505.0
If we subtract 60 from 68, 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.

Let's proceed to step 7:
When dividing 80 by 12, we get 6 with a remainder of 8.
Put 6 as the next digit of the answer. 
Result so far: 33505.6
Subtracting 72 from 80 leaves us 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.

On to step 8:
80 divided by 12 is 6 with a remainder of 8.
Use 6 as the next digit of our solution. 
Result so far: 33505.66
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.

The final result is 33505.66 with a remainder of 0.008.