We look at the division of 43238 by 20 
We want to figure out the number of times 43238 can be divided by 20.

Going ahead to step 1:
20 goes into 4 0 times with a remainder of 4.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 4, we end up with 4.
Take the next digit (3) from the dividend and append it to 4, then repeat: 43 / 20

On to step 2:
43 divided by 20 is 2 with a remainder of 3.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
If we take 40 away from 43, we end up with 3.
Grab the next digit (2) from the dividend, add it to 3, then carry on: 32 / 20

Moving on to step 3:
When dividing 32 by 20, we get 1 with a remainder of 12.
Write down 1 as next digit of the result. 
Result so far: 21.0
The remainder is 12 after subtracting 20 from 32.
Fetch the next digit (3) from the dividend, attach it to 12 and continue: 123 / 20

Going ahead to step 4:
When dividing 123 by 20, we get 6 with a remainder of 3.
Write down 6 as next digit of the result. 
Result so far: 216.0
Deduct 120 from 123 and we're left with 3.
Take the next digit (8) from the dividend and append it to 3, then repeat: 38 / 20

Going ahead to step 5:
20 can be fit into 38 1 times, resulting in a remainder of 18.
Record the quotient 1 as the next digit in the result. 
Result so far: 2161.0
Deduct 20 from 38 and we're left with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

On to step 6:
180 divided by 20 is 9 with a remainder of 0.
Put 9 as the next digit of the answer. 
Result so far: 2161.9
Deduct 180 from 180 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.

Going ahead to step 7:
The number 20 fits into 0 0 times, leaving a remainder of 0.
The next digit of our result is 0. 
Result so far: 2161.9
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.

Advancing to step 8:
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: 2161.9
Deduct 0 from 0 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.

The quotient of the division is 2161.9, and the remainder is 0.0.