We divide 243502 by 20
Let's see how many times 20 fits into 243502.

Step 1:
The number 20 fits into 2 0 times, leaving a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 2 to get 2.
Take the next digit (4) from the dividend and append it to 2, then repeat: 24 / 20

Let's proceed to step 2:
If we divide 24 by 20, we get 1 and a remainder of 4.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we take 20 away from 24, we end up with 4.
Append the next digit (3) from the dividend to 4 and continue with: 43 / 20

Let's proceed to step 3:
If we divide 43 by 20, we get 2 and a remainder of 3.
Record the quotient 2 as the next digit in the result. 
Result so far: 12.0
Subtract 40 from 43 to get 3.
Bring next digit (5) of the dividend behind the 3 and repeat the process: 35 / 20

Going ahead to step 4:
When dividing 35 by 20, we get 1 with a remainder of 15.
Record the quotient 1 as the next digit in the result. 
Result so far: 121.0
Deduct 20 from 35 and we're left with 15.
Fetch the next digit (0) from the dividend, attach it to 15 and continue: 150 / 20

Let's proceed to step 5:
If we divide 150 by 20, we get 7 and a remainder of 10.
Record the quotient 7 as the next digit in the result. 
Result so far: 1217.0
Subtract 140 from 150 to get 10.
Include the next digit (2) from the dividend after 10, then repeat: 102 / 20

Step 6:
The number 20 fits into 102 5 times, leaving a remainder of 2.
The next digit of our result is 5. 
Result so far: 12175.0
Deduct 100 from 102 and we're left with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

On to step 7:
20 can be fit into 20 1 times, resulting in a remainder of 0.
The number 1 becomes the next digit in our result. 
Result so far: 12175.1
Subtracting 20 from 20 leaves us 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.

Step 8:
20 goes into 0 0 times with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 12175.1
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.

On to step 9:
When dividing 0 by 20, we get 0 with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 12175.1
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 12175.1 with a balance of 0.0.