We divide 135304 by 12
Let's see how many times 12 fits into 135304.

Moving on to step 1:
1 divided by 12 is 0 with a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 1 leaves us with 1.
Grab the next digit (3) from the dividend, add it to 1, then carry on: 13 / 12

Moving on to step 2:
12 can be fit into 13 1 times, resulting in a remainder of 1.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtract 12 from 13 to get 1.
Take the next digit (5) from the dividend and append it to 1, then repeat: 15 / 12

Advancing to step 3:
If we divide 15 by 12, we get 1 and a remainder of 3.
Write down 1 as next digit of the result. 
Result so far: 11.0
If we take 12 away from 15, we end up with 3.
Append the next digit (3) from the dividend to 3 and continue with: 33 / 12

Advancing to step 4:
12 can be fit into 33 2 times, resulting in a remainder of 9.
Put 2 as the next digit of the answer. 
Result so far: 112.0
If we subtract 24 from 33, we get 9.
Take the next digit (0) from the dividend and append it to 9, then repeat: 90 / 12

Let's proceed to step 5:
If we divide 90 by 12, we get 7 and a remainder of 6.
The next digit of our result is 7. 
Result so far: 1127.0
Subtracting 84 from 90 leaves us with 6.
Bring next digit (4) of the dividend behind the 6 and repeat the process: 64 / 12

On to step 6:
64 divided by 12 is 5 with a remainder of 4.
The next digit of our result is 5. 
Result so far: 11275.0
Deduct 60 from 64 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 7:
12 goes into 40 3 times with a remainder of 4.
The next digit of our result is 3. 
Result so far: 11275.3
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.

Let's proceed to step 8:
12 goes into 40 3 times with a remainder of 4.
Write down 3 as next digit of the result. 
Result so far: 11275.33
If we take 36 away from 40, we end up 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.

The final result is 11275.33 with a remainder of 0.004.