236439 divided by 20 
Our goal is to divide 236439 by 20.

Step 1:
2 divided by 20 is 0 with a remainder of 2.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 2, we end up with 2.
Bring next digit (3) of the dividend behind the 2 and repeat the process: 23 / 20

Advancing to step 2:
When dividing 23 by 20, we get 1 with a remainder of 3.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we take 20 away from 23, we end up with 3.
Grab the next digit (6) from the dividend, add it to 3, then carry on: 36 / 20

On to step 3:
If we divide 36 by 20, we get 1 and a remainder of 16.
The next digit of our result is 1. 
Result so far: 11.0
If we take 20 away from 36, we end up with 16.
Fetch the next digit (4) from the dividend, attach it to 16 and continue: 164 / 20

Advancing to step 4:
20 can be fit into 164 8 times, resulting in a remainder of 4.
The next digit of our result is 8. 
Result so far: 118.0
Deduct 160 from 164 and we're left with 4.
Fetch the next digit (3) from the dividend, attach it to 4 and continue: 43 / 20

Going ahead to step 5:
43 divided by 20 is 2 with a remainder of 3.
Write down 2 as next digit of the result. 
Result so far: 1182.0
Subtracting 40 from 43 leaves us with 3.
Include the next digit (9) from the dividend after 3, then repeat: 39 / 20

Moving on to step 6:
39 divided by 20 is 1 with a remainder of 19.
The number 1 becomes the next digit in our result. 
Result so far: 11821.0
If we take 20 away from 39, we end up with 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Advancing to step 7:
If we divide 190 by 20, we get 9 and a remainder of 10.
Use 9 as the next digit of our solution. 
Result so far: 11821.9
If we subtract 180 from 190, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Let's proceed to step 8:
20 goes into 100 5 times with a remainder of 0.
Put 5 as the next digit of the answer. 
Result so far: 11821.95
The remainder is 0 after subtracting 100 from 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Going ahead to step 9:
20 can be fit into 0 0 times, resulting in a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 11821.95
If we take 0 away from 0, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Going ahead to step 10:
20 goes into 0 0 times with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 11821.95
If we take 0 away from 0, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

In conclusion, the division gives 11821.95 with a balance of 0.0.