We're dividing 392434 by 20 
Let's see how many times 20 fits into 392434.

Advancing to step 1:
20 goes into 3 0 times with a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 3 leaves us with 3.
Bring next digit (9) of the dividend behind the 3 and repeat the process: 39 / 20

Let's proceed to step 2:
If we divide 39 by 20, we get 1 and a remainder of 19.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
If we subtract 20 from 39, we get 19.
Take the next digit (2) from the dividend and append it to 19, then repeat: 192 / 20

Let's proceed to step 3:
The number 20 fits into 192 9 times, leaving a remainder of 12.
Record the quotient 9 as the next digit in the result. 
Result so far: 19.0
If we take 180 away from 192, we end up with 12.
Bring next digit (4) of the dividend behind the 12 and repeat the process: 124 / 20

Let's proceed to step 4:
The number 20 fits into 124 6 times, leaving a remainder of 4.
Put 6 as the next digit of the answer. 
Result so far: 196.0
Subtracting 120 from 124 leaves us with 4.
Append the next digit (3) from the dividend to 4 and continue with: 43 / 20

Advancing to step 5:
20 can be fit into 43 2 times, resulting in a remainder of 3.
The next digit of our result is 2. 
Result so far: 1962.0
Subtracting 40 from 43 leaves us with 3.
Take the next digit (4) from the dividend and append it to 3, then repeat: 34 / 20

Moving on to step 6:
The number 20 fits into 34 1 times, leaving a remainder of 14.
The next digit of our result is 1. 
Result so far: 19621.0
Subtracting 20 from 34 leaves us with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

On to step 7:
The number 20 fits into 140 7 times, leaving a remainder of 0.
The next digit of our result is 7. 
Result so far: 19621.7
Subtract 140 from 140 to get 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:
If we divide 0 by 20, we get 0 and a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 19621.7
If we subtract 0 from 0, we get 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 9:
If we divide 0 by 20, we get 0 and a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 19621.7
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.

The final result is 19621.7 with a remainder of 0.0.