We're dividing 786574 by 20 
We want to figure out the number of times 786574 can be divided by 20.

On to step 1:
When dividing 7 by 20, we get 0 with a remainder of 7.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 7 leaves us with 7.
Grab the next digit (8) from the dividend, add it to 7, then carry on: 78 / 20

Advancing to step 2:
78 divided by 20 is 3 with a remainder of 18.
Write down 3 as next digit of the result. 
Result so far: 3.0
Subtract 60 from 78 to get 18.
Take the next digit (6) from the dividend and append it to 18, then repeat: 186 / 20

Let's proceed to step 3:
The number 20 fits into 186 9 times, leaving a remainder of 6.
The number 9 becomes the next digit in our result. 
Result so far: 39.0
The remainder is 6 after subtracting 180 from 186.
Take the next digit (5) from the dividend and append it to 6, then repeat: 65 / 20

Let's proceed to step 4:
If we divide 65 by 20, we get 3 and a remainder of 5.
The number 3 becomes the next digit in our result. 
Result so far: 393.0
Deduct 60 from 65 and we're left with 5.
Append the next digit (7) from the dividend to 5 and continue with: 57 / 20

On to step 5:
When dividing 57 by 20, we get 2 with a remainder of 17.
The number 2 becomes the next digit in our result. 
Result so far: 3932.0
Subtract 40 from 57 to get 17.
Append the next digit (4) from the dividend to 17 and continue with: 174 / 20

Going ahead to step 6:
If we divide 174 by 20, we get 8 and a remainder of 14.
Write down 8 as next digit of the result. 
Result so far: 39328.0
Subtract 160 from 174 to get 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Step 7:
20 goes into 140 7 times with a remainder of 0.
Record the quotient 7 as the next digit in the result. 
Result so far: 39328.7
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.

Let's proceed to step 8:
When dividing 0 by 20, we get 0 with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 39328.7
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.

Going ahead to step 9:
If we divide 0 by 20, we get 0 and a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 39328.7
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 result is 39328.7 with a remainder of 0.0.