We look at the division of 970257 by 20 
Let's see how many times 20 fits into 970257.

Step 1:
9 divided by 20 is 0 with a remainder of 9.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 9 and we're left with 9.
Grab the next digit (7) from the dividend, add it to 9, then carry on: 97 / 20

Going ahead to step 2:
The number 20 fits into 97 4 times, leaving a remainder of 17.
The number 4 becomes the next digit in our result. 
Result so far: 4.0
Deduct 80 from 97 and we're left with 17.
Include the next digit (0) from the dividend after 17, then repeat: 170 / 20

On to step 3:
170 divided by 20 is 8 with a remainder of 10.
Write down 8 as next digit of the result. 
Result so far: 48.0
The remainder is 10 after subtracting 160 from 170.
Take the next digit (2) from the dividend and append it to 10, then repeat: 102 / 20

Step 4:
20 can be fit into 102 5 times, resulting in a remainder of 2.
Put 5 as the next digit of the answer. 
Result so far: 485.0
Subtracting 100 from 102 leaves us with 2.
Append the next digit (5) from the dividend to 2 and continue with: 25 / 20

Moving on to step 5:
20 can be fit into 25 1 times, resulting in a remainder of 5.
Put 1 as the next digit of the answer. 
Result so far: 4851.0
Subtracting 20 from 25 leaves us with 5.
Bring next digit (7) of the dividend behind the 5 and repeat the process: 57 / 20

Step 6:
If we divide 57 by 20, we get 2 and a remainder of 17.
Record the quotient 2 as the next digit in the result. 
Result so far: 48512.0
Subtract 40 from 57 to get 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Advancing to step 7:
The number 20 fits into 170 8 times, leaving a remainder of 10.
Record the quotient 8 as the next digit in the result. 
Result so far: 48512.8
Subtract 160 from 170 to get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Advancing 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: 48512.85
If we take 100 away from 100, 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.

Advancing to step 9:
0 divided by 20 is 0 with a remainder of 0.
The next digit of our result is 0. 
Result so far: 48512.85
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.

Let's proceed 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: 48512.85
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.

In conclusion, the division gives 48512.85 with a balance of 0.0.