We're dividing 604570 by 20 
We're looking to find how many times 20 goes into 604570.

Moving on to step 1:
20 goes into 6 0 times with a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Append the next digit (0) from the dividend to 6 and continue with: 60 / 20

Step 2:
20 goes into 60 3 times with a remainder of 0.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
Deduct 60 from 60 and we're left with 0.
Grab the next digit (4) from the dividend, add it to 0, then carry on: 4 / 20

Advancing to step 3:
The number 20 fits into 4 0 times, leaving a remainder of 4.
Record the quotient 0 as the next digit in the result. 
Result so far: 30.0
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

Moving on to step 4:
When dividing 45 by 20, we get 2 with a remainder of 5.
The next digit of our result is 2. 
Result so far: 302.0
The remainder is 5 after subtracting 40 from 45.
Grab the next digit (7) from the dividend, add it to 5, then carry on: 57 / 20

Going ahead to step 5:
20 goes into 57 2 times with a remainder of 17.
The number 2 becomes the next digit in our result. 
Result so far: 3022.0
Subtracting 40 from 57 leaves us with 17.
Fetch the next digit (0) from the dividend, attach it to 17 and continue: 170 / 20

Going ahead to step 6:
20 can be fit into 170 8 times, resulting in a remainder of 10.
Use 8 as the next digit of our solution. 
Result so far: 30228.0
Subtract 160 from 170 to 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.

Going ahead to step 7:
20 goes into 100 5 times with a remainder of 0.
Record the quotient 5 as the next digit in the result. 
Result so far: 30228.5
The remainder is 0 after subtracting 100 from 100.
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 8:
The number 20 fits into 0 0 times, leaving a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 30228.5
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.

On to step 9:
The number 20 fits into 0 0 times, leaving a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 30228.5
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 30228.5 with a remainder of 0.0.