123530 ÷ 20 
We're looking to find how many times 20 goes into 123530.

Going ahead to step 1:
20 goes into 1 0 times with a remainder of 1.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 1, we end up with 1.
Fetch the next digit (2) from the dividend, attach it to 1 and continue: 12 / 20

Step 2:
12 divided by 20 is 0 with a remainder of 12.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 12 to get 12.
Take the next digit (3) from the dividend and append it to 12, then repeat: 123 / 20

Let's proceed to step 3:
The number 20 fits into 123 6 times, leaving a remainder of 3.
Write down 6 as next digit of the result. 
Result so far: 6.0
Subtracting 120 from 123 leaves us with 3.
Append the next digit (5) from the dividend to 3 and continue with: 35 / 20

On to step 4:
If we divide 35 by 20, we get 1 and a remainder of 15.
Record the quotient 1 as the next digit in the result. 
Result so far: 61.0
If we subtract 20 from 35, we get 15.
Fetch the next digit (3) from the dividend, attach it to 15 and continue: 153 / 20

Moving on to step 5:
If we divide 153 by 20, we get 7 and a remainder of 13.
The number 7 becomes the next digit in our result. 
Result so far: 617.0
Deduct 140 from 153 and we're left with 13.
Append the next digit (0) from the dividend to 13 and continue with: 130 / 20

On to step 6:
20 can be fit into 130 6 times, resulting in a remainder of 10.
Write down 6 as next digit of the result. 
Result so far: 6176.0
Subtracting 120 from 130 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 7:
100 divided by 20 is 5 with a remainder of 0.
The number 5 becomes the next digit in our result. 
Result so far: 6176.5
The remainder is 0 after subtracting 100 from 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Step 8:
0 divided by 20 is 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 6176.5
The remainder is 0 after subtracting 0 from 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 can be fit into 0 0 times, resulting in a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 6176.5
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.

The final result is 6176.5 with a remainder of 0.0.