We're dividing 66259 by 20 
The aim is to understand the frequency of 20 in 66259.

Advancing to step 1:
The number 20 fits into 6 0 times, leaving a remainder of 6.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Include the next digit (6) from the dividend after 6, then repeat: 66 / 20

Step 2:
20 goes into 66 3 times with a remainder of 6.
Put 3 as the next digit of the answer. 
Result so far: 3.0
If we subtract 60 from 66, we get 6.
Bring next digit (2) of the dividend behind the 6 and repeat the process: 62 / 20

Step 3:
If we divide 62 by 20, we get 3 and a remainder of 2.
Record the quotient 3 as the next digit in the result. 
Result so far: 33.0
If we take 60 away from 62, we end up with 2.
Bring next digit (5) of the dividend behind the 2 and repeat the process: 25 / 20

Let's proceed to step 4:
The number 20 fits into 25 1 times, leaving a remainder of 5.
The next digit of our result is 1. 
Result so far: 331.0
If we take 20 away from 25, we end up with 5.
Include the next digit (9) from the dividend after 5, then repeat: 59 / 20

On to step 5:
The number 20 fits into 59 2 times, leaving a remainder of 19.
Write down 2 as next digit of the result. 
Result so far: 3312.0
The remainder is 19 after subtracting 40 from 59.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Step 6:
20 goes into 190 9 times with a remainder of 10.
Record the quotient 9 as the next digit in the result. 
Result so far: 3312.9
Subtracting 180 from 190 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.

On to step 7:
If we divide 100 by 20, we get 5 and a remainder of 0.
Record the quotient 5 as the next digit in the result. 
Result so far: 3312.95
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.

Let's proceed to 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: 3312.95
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.

Going ahead 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: 3312.95
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.

Our division results in 3312.95 with a remaining 0.0.