We're dividing 428997 by 20 
Let's see how many times 20 fits into 428997.

On to step 1:
When dividing 4 by 20, we get 0 with a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 4 after subtracting 0 from 4.
Include the next digit (2) from the dividend after 4, then repeat: 42 / 20

Step 2:
42 divided by 20 is 2 with a remainder of 2.
The next digit of our result is 2. 
Result so far: 2.0
If we take 40 away from 42, we end up with 2.
Append the next digit (8) from the dividend to 2 and continue with: 28 / 20

Going ahead to step 3:
20 can be fit into 28 1 times, resulting in a remainder of 8.
The number 1 becomes the next digit in our result. 
Result so far: 21.0
If we subtract 20 from 28, we get 8.
Append the next digit (9) from the dividend to 8 and continue with: 89 / 20

Let's proceed to step 4:
When dividing 89 by 20, we get 4 with a remainder of 9.
Put 4 as the next digit of the answer. 
Result so far: 214.0
Subtracting 80 from 89 leaves us with 9.
Fetch the next digit (9) from the dividend, attach it to 9 and continue: 99 / 20

Let's proceed to step 5:
The number 20 fits into 99 4 times, leaving a remainder of 19.
Record the quotient 4 as the next digit in the result. 
Result so far: 2144.0
Subtract 80 from 99 to get 19.
Take the next digit (7) from the dividend and append it to 19, then repeat: 197 / 20

On to step 6:
197 divided by 20 is 9 with a remainder of 17.
The next digit of our result is 9. 
Result so far: 21449.0
If we take 180 away from 197, we end up with 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Going ahead to step 7:
170 divided by 20 is 8 with a remainder of 10.
Record the quotient 8 as the next digit in the result. 
Result so far: 21449.8
If we subtract 160 from 170, 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.

On to step 8:
When dividing 100 by 20, we get 5 with a remainder of 0.
Record the quotient 5 as the next digit in the result. 
Result so far: 21449.85
Subtracting 100 from 100 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.

Let's proceed to step 9:
20 goes into 0 0 times with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 21449.85
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.

Step 10:
When dividing 0 by 20, we get 0 with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 21449.85
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 quotient of the division is 21449.85, and the remainder is 0.0.