457802 ÷ 20 
Our goal is to divide 457802 by 20.

Let's proceed to step 1:
20 can be fit into 4 0 times, resulting in a remainder of 4.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 4 after subtracting 0 from 4.
Bring next digit (5) of the dividend behind the 4 and repeat the process: 45 / 20

Advancing to step 2:
20 can be fit into 45 2 times, resulting in a remainder of 5.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
Subtract 40 from 45 to get 5.
Include the next digit (7) from the dividend after 5, then repeat: 57 / 20

Let's proceed to step 3:
57 divided by 20 is 2 with a remainder of 17.
Record the quotient 2 as the next digit in the result. 
Result so far: 22.0
Subtracting 40 from 57 leaves us with 17.
Fetch the next digit (8) from the dividend, attach it to 17 and continue: 178 / 20

Moving on to step 4:
The number 20 fits into 178 8 times, leaving a remainder of 18.
Use 8 as the next digit of our solution. 
Result so far: 228.0
If we subtract 160 from 178, we get 18.
Append the next digit (0) from the dividend to 18 and continue with: 180 / 20

On to step 5:
180 divided by 20 is 9 with a remainder of 0.
Record the quotient 9 as the next digit in the result. 
Result so far: 2289.0
If we take 180 away from 180, we end up with 0.
Append the next digit (2) from the dividend to 0 and continue with: 2 / 20

Advancing to step 6:
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: 22890.0
Deduct 0 from 2 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.

Step 7:
When dividing 20 by 20, we get 1 with a remainder of 0.
Put 1 as the next digit of the answer. 
Result so far: 22890.1
The remainder is 0 after subtracting 20 from 20.
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 can be fit into 0 0 times, resulting in a remainder of 0.
The next digit of our result is 0. 
Result so far: 22890.1
Subtracting 0 from 0 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.

Going ahead to step 9:
20 can be fit into 0 0 times, resulting in a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 22890.1
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 final result is 22890.1 with a remainder of 0.0.