We look at the division of 974591 by 20 
We want to figure out the number of times 974591 can be divided by 20.

Advancing to step 1:
20 goes into 9 0 times with a remainder of 9.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 9, we end up with 9.
Grab the next digit (7) from the dividend, add it to 9, then carry on: 97 / 20

Moving on to step 2:
The number 20 fits into 97 4 times, leaving a remainder of 17.
Put 4 as the next digit of the answer. 
Result so far: 4.0
If we subtract 80 from 97, we get 17.
Take the next digit (4) from the dividend and append it to 17, then repeat: 174 / 20

Step 3:
20 can be fit into 174 8 times, resulting in a remainder of 14.
Use 8 as the next digit of our solution. 
Result so far: 48.0
If we take 160 away from 174, we end up with 14.
Grab the next digit (5) from the dividend, add it to 14, then carry on: 145 / 20

Going ahead to step 4:
20 goes into 145 7 times with a remainder of 5.
Use 7 as the next digit of our solution. 
Result so far: 487.0
Deduct 140 from 145 and we're left with 5.
Fetch the next digit (9) from the dividend, attach it to 5 and continue: 59 / 20

Let's proceed to step 5:
59 divided by 20 is 2 with a remainder of 19.
Record the quotient 2 as the next digit in the result. 
Result so far: 4872.0
If we subtract 40 from 59, we get 19.
Include the next digit (1) from the dividend after 19, then repeat: 191 / 20

Moving on to step 6:
20 goes into 191 9 times with a remainder of 11.
Record the quotient 9 as the next digit in the result. 
Result so far: 48729.0
The remainder is 11 after subtracting 180 from 191.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Step 7:
20 goes into 110 5 times with a remainder of 10.
The next digit of our result is 5. 
Result so far: 48729.5
Subtracting 100 from 110 leaves us 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.

Going ahead to step 8:
The number 20 fits into 100 5 times, leaving a remainder of 0.
Use 5 as the next digit of our solution. 
Result so far: 48729.55
Subtracting 100 from 100 leaves us 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 quotient of the division is 48729.55, and the remainder is 0.0.