Let's divide 239309 by 20
Let's see how many times 20 fits into 239309.

Moving on to step 1:
20 can be fit into 2 0 times, resulting in a remainder of 2.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 2 after subtracting 0 from 2.
Fetch the next digit (3) from the dividend, attach it to 2 and continue: 23 / 20

Moving on to step 2:
The number 20 fits into 23 1 times, leaving a remainder of 3.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we subtract 20 from 23, we get 3.
Take the next digit (9) from the dividend and append it to 3, then repeat: 39 / 20

Going ahead to step 3:
39 divided by 20 is 1 with a remainder of 19.
The number 1 becomes the next digit in our result. 
Result so far: 11.0
The remainder is 19 after subtracting 20 from 39.
Bring next digit (3) of the dividend behind the 19 and repeat the process: 193 / 20

Let's proceed to step 4:
When dividing 193 by 20, we get 9 with a remainder of 13.
Write down 9 as next digit of the result. 
Result so far: 119.0
If we take 180 away from 193, we end up with 13.
Fetch the next digit (0) from the dividend, attach it to 13 and continue: 130 / 20

Going ahead to step 5:
When dividing 130 by 20, we get 6 with a remainder of 10.
The next digit of our result is 6. 
Result so far: 1196.0
Subtracting 120 from 130 leaves us with 10.
Include the next digit (9) from the dividend after 10, then repeat: 109 / 20

Going ahead to step 6:
109 divided by 20 is 5 with a remainder of 9.
The number 5 becomes the next digit in our result. 
Result so far: 11965.0
If we subtract 100 from 109, we get 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Let's proceed to step 7:
When dividing 90 by 20, we get 4 with a remainder of 10.
Use 4 as the next digit of our solution. 
Result so far: 11965.4
If we subtract 80 from 90, 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.

Step 8:
If we divide 100 by 20, we get 5 and a remainder of 0.
Write down 5 as next digit of the result. 
Result so far: 11965.45
Deduct 100 from 100 and we're left 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.

Let's proceed to step 9:
If we divide 0 by 20, we get 0 and a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 11965.45
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Advancing to step 10:
0 divided by 20 is 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 11965.45
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Our division results in 11965.45 with a remaining 0.0.