236239 ÷ 12 
Let's see how many times 12 fits into 236239.

Let's proceed to step 1:
12 can be fit into 2 0 times, resulting in a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 2 and we're left with 2.
Include the next digit (3) from the dividend after 2, then repeat: 23 / 12

On to step 2:
When dividing 23 by 12, we get 1 with a remainder of 11.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtract 12 from 23 to get 11.
Take the next digit (6) from the dividend and append it to 11, then repeat: 116 / 12

Going ahead to step 3:
116 divided by 12 is 9 with a remainder of 8.
Record the quotient 9 as the next digit in the result. 
Result so far: 19.0
Subtracting 108 from 116 leaves us with 8.
Grab the next digit (2) from the dividend, add it to 8, then carry on: 82 / 12

Step 4:
12 goes into 82 6 times with a remainder of 10.
Use 6 as the next digit of our solution. 
Result so far: 196.0
Subtract 72 from 82 to get 10.
Grab the next digit (3) from the dividend, add it to 10, then carry on: 103 / 12

Going ahead to step 5:
The number 12 fits into 103 8 times, leaving a remainder of 7.
Write down 8 as next digit of the result. 
Result so far: 1968.0
Deduct 96 from 103 and we're left with 7.
Append the next digit (9) from the dividend to 7 and continue with: 79 / 12

On to step 6:
79 divided by 12 is 6 with a remainder of 7.
Put 6 as the next digit of the answer. 
Result so far: 19686.0
Deduct 72 from 79 and we're left with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Let's proceed to step 7:
When dividing 70 by 12, we get 5 with a remainder of 10.
The next digit of our result is 5. 
Result so far: 19686.5
Subtracting 60 from 70 leaves us with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Step 8:
The number 12 fits into 100 8 times, leaving a remainder of 4.
The number 8 becomes the next digit in our result. 
Result so far: 19686.58
Deduct 96 from 100 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.

Going ahead to step 9:
If we divide 40 by 12, we get 3 and a remainder of 4.
Put 3 as the next digit of the answer. 
Result so far: 19686.583
If we subtract 36 from 40, we 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.

Advancing to step 10:
12 can be fit into 40 3 times, resulting in a remainder of 4.
Put 3 as the next digit of the answer. 
Result so far: 19686.5833
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.

The final result is 19686.5833 with a remainder of 4e-05.