Let's divide 935919 by 20
The aim is to understand the frequency of 20 in 935919.

Moving on to step 1:
9 divided by 20 is 0 with a remainder of 9.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 9 leaves us with 9.
Grab the next digit (3) from the dividend, add it to 9, then carry on: 93 / 20

Step 2:
20 can be fit into 93 4 times, resulting in a remainder of 13.
The number 4 becomes the next digit in our result. 
Result so far: 4.0
Subtracting 80 from 93 leaves us with 13.
Append the next digit (5) from the dividend to 13 and continue with: 135 / 20

Advancing to step 3:
The number 20 fits into 135 6 times, leaving a remainder of 15.
The next digit of our result is 6. 
Result so far: 46.0
Deduct 120 from 135 and we're left with 15.
Append the next digit (9) from the dividend to 15 and continue with: 159 / 20

Going ahead to step 4:
20 goes into 159 7 times with a remainder of 19.
Put 7 as the next digit of the answer. 
Result so far: 467.0
Subtract 140 from 159 to get 19.
Grab the next digit (1) from the dividend, add it to 19, then carry on: 191 / 20

Let's proceed to step 5:
20 can be fit into 191 9 times, resulting in a remainder of 11.
Record the quotient 9 as the next digit in the result. 
Result so far: 4679.0
Deduct 180 from 191 and we're left with 11.
Bring next digit (9) of the dividend behind the 11 and repeat the process: 119 / 20

Step 6:
If we divide 119 by 20, we get 5 and a remainder of 19.
Use 5 as the next digit of our solution. 
Result so far: 46795.0
Subtract 100 from 119 to get 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Going ahead to step 7:
190 divided by 20 is 9 with a remainder of 10.
The next digit of our result is 9. 
Result so far: 46795.9
Subtract 180 from 190 to 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.

Going ahead to step 8:
20 goes into 100 5 times with a remainder of 0.
Record the quotient 5 as the next digit in the result. 
Result so far: 46795.95
The remainder is 0 after subtracting 100 from 100.
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:
0 divided by 20 is 0 with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 46795.95
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.

Going ahead to step 10:
20 can be fit into 0 0 times, resulting in a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 46795.95
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.

After the division, we end up with 46795.95 and a remainder of 0.0.