We look at the division of 363294 by 20 
The aim is to understand the frequency of 20 in 363294.

Advancing to step 1:
3 divided by 20 is 0 with a remainder of 3.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 3 leaves us with 3.
Append the next digit (6) from the dividend to 3 and continue with: 36 / 20

On to step 2:
When dividing 36 by 20, we get 1 with a remainder of 16.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
If we subtract 20 from 36, we get 16.
Take the next digit (3) from the dividend and append it to 16, then repeat: 163 / 20

On to step 3:
163 divided by 20 is 8 with a remainder of 3.
Put 8 as the next digit of the answer. 
Result so far: 18.0
Subtracting 160 from 163 leaves us with 3.
Fetch the next digit (2) from the dividend, attach it to 3 and continue: 32 / 20

Step 4:
When dividing 32 by 20, we get 1 with a remainder of 12.
The number 1 becomes the next digit in our result. 
Result so far: 181.0
The remainder is 12 after subtracting 20 from 32.
Take the next digit (9) from the dividend and append it to 12, then repeat: 129 / 20

Step 5:
20 goes into 129 6 times with a remainder of 9.
Record the quotient 6 as the next digit in the result. 
Result so far: 1816.0
Subtracting 120 from 129 leaves us with 9.
Grab the next digit (4) from the dividend, add it to 9, then carry on: 94 / 20

Let's proceed to step 6:
20 can be fit into 94 4 times, resulting in a remainder of 14.
The number 4 becomes the next digit in our result. 
Result so far: 18164.0
Subtract 80 from 94 to get 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Let's proceed to step 7:
When dividing 140 by 20, we get 7 with a remainder of 0.
Put 7 as the next digit of the answer. 
Result so far: 18164.7
Deduct 140 from 140 and we're left 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 can be fit into 0 0 times, resulting in a remainder of 0.
The next digit of our result is 0. 
Result so far: 18164.7
Deduct 0 from 0 and we're left 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.

Step 9:
If we divide 0 by 20, we get 0 and a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 18164.7
Subtracting 0 from 0 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.

The final result is 18164.7 with a remainder of 0.0.