We look at the division of 266530 by 20 
We're looking to find how many times 20 goes into 266530.

Step 1:
20 can be fit into 2 0 times, resulting in a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 2 after subtracting 0 from 2.
Append the next digit (6) from the dividend to 2 and continue with: 26 / 20

Moving on to step 2:
26 divided by 20 is 1 with a remainder of 6.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtract 20 from 26 to get 6.
Take the next digit (6) from the dividend and append it to 6, then repeat: 66 / 20

On to step 3:
66 divided by 20 is 3 with a remainder of 6.
The number 3 becomes the next digit in our result. 
Result so far: 13.0
If we subtract 60 from 66, we get 6.
Bring next digit (5) of the dividend behind the 6 and repeat the process: 65 / 20

Step 4:
20 goes into 65 3 times with a remainder of 5.
The number 3 becomes the next digit in our result. 
Result so far: 133.0
Subtracting 60 from 65 leaves us with 5.
Fetch the next digit (3) from the dividend, attach it to 5 and continue: 53 / 20

Step 5:
20 can be fit into 53 2 times, resulting in a remainder of 13.
Record the quotient 2 as the next digit in the result. 
Result so far: 1332.0
Deduct 40 from 53 and we're left with 13.
Fetch the next digit (0) from the dividend, attach it to 13 and continue: 130 / 20

Going ahead to step 6:
20 goes into 130 6 times with a remainder of 10.
Use 6 as the next digit of our solution. 
Result so far: 13326.0
Deduct 120 from 130 and we're left 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.

Let's proceed to step 7:
100 divided by 20 is 5 with a remainder of 0.
Use 5 as the next digit of our solution. 
Result so far: 13326.5
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.

Let's proceed to step 8:
The number 20 fits into 0 0 times, leaving a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 13326.5
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.

On to step 9:
If we divide 0 by 20, we get 0 and a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 13326.5
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.

After the division, we end up with 13326.5 and a remainder of 0.0.