We divide 341664 by 20
The aim is to understand the frequency of 20 in 341664.

Step 1:
The number 20 fits into 3 0 times, leaving a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 3 leaves us with 3.
Include the next digit (4) from the dividend after 3, then repeat: 34 / 20

Going ahead to step 2:
If we divide 34 by 20, we get 1 and a remainder of 14.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
If we subtract 20 from 34, we get 14.
Grab the next digit (1) from the dividend, add it to 14, then carry on: 141 / 20

Let's proceed to step 3:
20 can be fit into 141 7 times, resulting in a remainder of 1.
Use 7 as the next digit of our solution. 
Result so far: 17.0
Subtract 140 from 141 to get 1.
Bring next digit (6) of the dividend behind the 1 and repeat the process: 16 / 20

On to step 4:
20 goes into 16 0 times with a remainder of 16.
Write down 0 as next digit of the result. 
Result so far: 170.0
The remainder is 16 after subtracting 0 from 16.
Fetch the next digit (6) from the dividend, attach it to 16 and continue: 166 / 20

Let's proceed to step 5:
20 goes into 166 8 times with a remainder of 6.
Put 8 as the next digit of the answer. 
Result so far: 1708.0
If we take 160 away from 166, we end up with 6.
Fetch the next digit (4) from the dividend, attach it to 6 and continue: 64 / 20

Moving on to step 6:
If we divide 64 by 20, we get 3 and a remainder of 4.
Record the quotient 3 as the next digit in the result. 
Result so far: 17083.0
Subtracting 60 from 64 leaves us with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Advancing to step 7:
20 goes into 40 2 times with a remainder of 0.
Put 2 as the next digit of the answer. 
Result so far: 17083.2
If we subtract 40 from 40, 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 8:
20 goes into 0 0 times with a remainder of 0.
The next digit of our result is 0. 
Result so far: 17083.2
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.

Moving on to step 9:
20 goes into 0 0 times with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 17083.2
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 17083.2 with a remainder of 0.0.