Let's divide 434907 by 20
Let's see how many times 20 fits into 434907.

Advancing to step 1:
If we divide 4 by 20, we get 0 and a remainder of 4.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 4 to get 4.
Include the next digit (3) from the dividend after 4, then repeat: 43 / 20

Let's proceed to step 2:
43 divided by 20 is 2 with a remainder of 3.
Write down 2 as next digit of the result. 
Result so far: 2.0
Deduct 40 from 43 and we're left with 3.
Append the next digit (4) from the dividend to 3 and continue with: 34 / 20

On to step 3:
If we divide 34 by 20, we get 1 and a remainder of 14.
Use 1 as the next digit of our solution. 
Result so far: 21.0
Subtract 20 from 34 to get 14.
Take the next digit (9) from the dividend and append it to 14, then repeat: 149 / 20

Moving on to step 4:
20 goes into 149 7 times with a remainder of 9.
Write down 7 as next digit of the result. 
Result so far: 217.0
Deduct 140 from 149 and we're left with 9.
Fetch the next digit (0) from the dividend, attach it to 9 and continue: 90 / 20

On to step 5:
20 goes into 90 4 times with a remainder of 10.
Put 4 as the next digit of the answer. 
Result so far: 2174.0
If we take 80 away from 90, we end up with 10.
Fetch the next digit (7) from the dividend, attach it to 10 and continue: 107 / 20

Going ahead to step 6:
If we divide 107 by 20, we get 5 and a remainder of 7.
The number 5 becomes the next digit in our result. 
Result so far: 21745.0
If we subtract 100 from 107, we get 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Step 7:
When dividing 70 by 20, we get 3 with a remainder of 10.
Write down 3 as next digit of the result. 
Result so far: 21745.3
Deduct 60 from 70 and we're left with 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:
20 can be fit into 100 5 times, resulting in a remainder of 0.
The next digit of our result is 5. 
Result so far: 21745.35
If we subtract 100 from 100, 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.

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: 21745.35
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 10:
The number 20 fits into 0 0 times, leaving a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 21745.35
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.

After the division, we end up with 21745.35 and a remainder of 0.0.