709451 divided by 20 
We want to divide 709451 by 20.

Step 1:
When dividing 7 by 20, we get 0 with a remainder of 7.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 7 to get 7.
Take the next digit (0) from the dividend and append it to 7, then repeat: 70 / 20

Advancing to step 2:
70 divided by 20 is 3 with a remainder of 10.
Record the quotient 3 as the next digit in the result. 
Result so far: 3.0
Deduct 60 from 70 and we're left with 10.
Grab the next digit (9) from the dividend, add it to 10, then carry on: 109 / 20

Let's proceed to step 3:
109 divided by 20 is 5 with a remainder of 9.
The number 5 becomes the next digit in our result. 
Result so far: 35.0
If we subtract 100 from 109, we get 9.
Append the next digit (4) from the dividend to 9 and continue with: 94 / 20

Step 4:
If we divide 94 by 20, we get 4 and a remainder of 14.
Record the quotient 4 as the next digit in the result. 
Result so far: 354.0
If we subtract 80 from 94, we get 14.
Append the next digit (5) from the dividend to 14 and continue with: 145 / 20

Step 5:
The number 20 fits into 145 7 times, leaving a remainder of 5.
Record the quotient 7 as the next digit in the result. 
Result so far: 3547.0
Deduct 140 from 145 and we're left with 5.
Bring next digit (1) of the dividend behind the 5 and repeat the process: 51 / 20

Going ahead to step 6:
20 goes into 51 2 times with a remainder of 11.
Put 2 as the next digit of the answer. 
Result so far: 35472.0
Deduct 40 from 51 and we're left with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Advancing to step 7:
20 goes into 110 5 times with a remainder of 10.
The number 5 becomes the next digit in our result. 
Result so far: 35472.5
If we take 100 away from 110, we end up 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:
100 divided by 20 is 5 with a remainder of 0.
The number 5 becomes the next digit in our result. 
Result so far: 35472.55
Subtract 100 from 100 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 result is 35472.55 with a remainder of 0.0.