We look at the division of 479174 by 20 
Let's see how many times 20 fits into 479174.

Step 1:
4 divided by 20 is 0 with a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 4 leaves us with 4.
Bring next digit (7) of the dividend behind the 4 and repeat the process: 47 / 20

Step 2:
The number 20 fits into 47 2 times, leaving a remainder of 7.
Use 2 as the next digit of our solution. 
Result so far: 2.0
Subtract 40 from 47 to get 7.
Take the next digit (9) from the dividend and append it to 7, then repeat: 79 / 20

Going ahead to step 3:
20 goes into 79 3 times with a remainder of 19.
The next digit of our result is 3. 
Result so far: 23.0
Subtracting 60 from 79 leaves us with 19.
Bring next digit (1) of the dividend behind the 19 and repeat the process: 191 / 20

Advancing to step 4:
191 divided by 20 is 9 with a remainder of 11.
Put 9 as the next digit of the answer. 
Result so far: 239.0
If we subtract 180 from 191, we get 11.
Fetch the next digit (7) from the dividend, attach it to 11 and continue: 117 / 20

Going ahead to step 5:
If we divide 117 by 20, we get 5 and a remainder of 17.
Write down 5 as next digit of the result. 
Result so far: 2395.0
Subtracting 100 from 117 leaves us with 17.
Fetch the next digit (4) from the dividend, attach it to 17 and continue: 174 / 20

Advancing to step 6:
The number 20 fits into 174 8 times, leaving a remainder of 14.
Put 8 as the next digit of the answer. 
Result so far: 23958.0
Deduct 160 from 174 and we're left 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.

Going ahead to step 7:
20 goes into 140 7 times with a remainder of 0.
The next digit of our result is 7. 
Result so far: 23958.7
If we subtract 140 from 140, 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.

Going ahead to step 8:
The number 20 fits into 0 0 times, leaving a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 23958.7
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.

Step 9:
If we divide 0 by 20, we get 0 and a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 23958.7
Subtract 0 from 0 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.

The final outcome is 23958.7, with a leftover of 0.0.