We look at the division of 290296 by 20 
The aim is to understand the frequency of 20 in 290296.

Step 1:
20 can be fit into 2 0 times, resulting in a remainder of 2.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 2 leaves us with 2.
Include the next digit (9) from the dividend after 2, then repeat: 29 / 20

Going ahead to step 2:
29 divided by 20 is 1 with a remainder of 9.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we take 20 away from 29, we end up with 9.
Take the next digit (0) from the dividend and append it to 9, then repeat: 90 / 20

Step 3:
If we divide 90 by 20, we get 4 and a remainder of 10.
Put 4 as the next digit of the answer. 
Result so far: 14.0
If we subtract 80 from 90, we get 10.
Grab the next digit (2) from the dividend, add it to 10, then carry on: 102 / 20

Moving on to step 4:
The number 20 fits into 102 5 times, leaving a remainder of 2.
The next digit of our result is 5. 
Result so far: 145.0
Subtract 100 from 102 to get 2.
Take the next digit (9) from the dividend and append it to 2, then repeat: 29 / 20

Going ahead to step 5:
If we divide 29 by 20, we get 1 and a remainder of 9.
Write down 1 as next digit of the result. 
Result so far: 1451.0
Subtract 20 from 29 to get 9.
Include the next digit (6) from the dividend after 9, then repeat: 96 / 20

Step 6:
96 divided by 20 is 4 with a remainder of 16.
Write down 4 as next digit of the result. 
Result so far: 14514.0
Deduct 80 from 96 and we're left with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Advancing to step 7:
When dividing 160 by 20, we get 8 with a remainder of 0.
The number 8 becomes the next digit in our result. 
Result so far: 14514.8
Subtracting 160 from 160 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.

On to step 8:
20 goes into 0 0 times with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 14514.8
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.

On to step 9:
When dividing 0 by 20, we get 0 with a remainder of 0.
The next digit of our result is 0. 
Result so far: 14514.8
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.

Our division results in 14514.8 with a remaining 0.0.