We divide 64164247 by 20
The aim is to understand the frequency of 20 in 64164247.

Step 1:
20 goes into 6 0 times with a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Include the next digit (4) from the dividend after 6, then repeat: 64 / 20

Going ahead to step 2:
The number 20 fits into 64 3 times, leaving a remainder of 4.
Record the quotient 3 as the next digit in the result. 
Result so far: 3.0
If we take 60 away from 64, we end up with 4.
Grab the next digit (1) from the dividend, add it to 4, then carry on: 41 / 20

Step 3:
41 divided by 20 is 2 with a remainder of 1.
The next digit of our result is 2. 
Result so far: 32.0
If we take 40 away from 41, we end up with 1.
Take the next digit (6) from the dividend and append it to 1, then repeat: 16 / 20

Going ahead to step 4:
20 can be fit into 16 0 times, resulting in a remainder of 16.
The number 0 becomes the next digit in our result. 
Result so far: 320.0
Subtract 0 from 16 to get 16.
Include the next digit (4) from the dividend after 16, then repeat: 164 / 20

On to step 5:
The number 20 fits into 164 8 times, leaving a remainder of 4.
Write down 8 as next digit of the result. 
Result so far: 3208.0
Deduct 160 from 164 and we're left with 4.
Fetch the next digit (2) from the dividend, attach it to 4 and continue: 42 / 20

On to step 6:
If we divide 42 by 20, we get 2 and a remainder of 2.
Use 2 as the next digit of our solution. 
Result so far: 32082.0
Subtracting 40 from 42 leaves us with 2.
Append the next digit (4) from the dividend to 2 and continue with: 24 / 20

Let's proceed to step 7:
20 can be fit into 24 1 times, resulting in a remainder of 4.
Put 1 as the next digit of the answer. 
Result so far: 320821.0
Subtracting 20 from 24 leaves us with 4.
Bring next digit (7) of the dividend behind the 4 and repeat the process: 47 / 20

Moving on to step 8:
When dividing 47 by 20, we get 2 with a remainder of 7.
The next digit of our result is 2. 
Result so far: 3208212.0
Deduct 40 from 47 and we're left with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Going ahead to step 9:
20 goes into 70 3 times with a remainder of 10.
Put 3 as the next digit of the answer. 
Result so far: 3208212.3
If we subtract 60 from 70, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Advancing to step 10:
When dividing 100 by 20, we get 5 with a remainder of 0.
Write down 5 as next digit of the result. 
Result so far: 3208212.35
If we take 100 away from 100, 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.

Moving on to step 11:
If we divide 0 by 20, we get 0 and a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 3208212.35
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.

On to step 12:
If we divide 0 by 20, we get 0 and a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 3208212.35
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.

The final result is 3208212.35 with a remainder of 0.0.