Let's divide 31933424 by 20
The aim is to understand the frequency of 20 in 31933424.

On to step 1:
When dividing 3 by 20, we get 0 with a remainder of 3.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 3, we get 3.
Take the next digit (1) from the dividend and append it to 3, then repeat: 31 / 20

Let's proceed to step 2:
When dividing 31 by 20, we get 1 with a remainder of 11.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
If we subtract 20 from 31, we get 11.
Include the next digit (9) from the dividend after 11, then repeat: 119 / 20

Advancing to step 3:
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: 15.0
If we subtract 100 from 119, we get 19.
Take the next digit (3) from the dividend and append it to 19, then repeat: 193 / 20

Let's proceed to step 4:
When dividing 193 by 20, we get 9 with a remainder of 13.
The next digit of our result is 9. 
Result so far: 159.0
The remainder is 13 after subtracting 180 from 193.
Take the next digit (3) from the dividend and append it to 13, then repeat: 133 / 20

Moving on to step 5:
133 divided by 20 is 6 with a remainder of 13.
The number 6 becomes the next digit in our result. 
Result so far: 1596.0
If we subtract 120 from 133, we get 13.
Append the next digit (4) from the dividend to 13 and continue with: 134 / 20

Moving on to step 6:
134 divided by 20 is 6 with a remainder of 14.
The next digit of our result is 6. 
Result so far: 15966.0
Subtract 120 from 134 to get 14.
Take the next digit (2) from the dividend and append it to 14, then repeat: 142 / 20

Advancing to step 7:
If we divide 142 by 20, we get 7 and a remainder of 2.
The number 7 becomes the next digit in our result. 
Result so far: 159667.0
If we take 140 away from 142, we end up with 2.
Fetch the next digit (4) from the dividend, attach it to 2 and continue: 24 / 20

Let's proceed to step 8:
20 goes into 24 1 times with a remainder of 4.
Put 1 as the next digit of the answer. 
Result so far: 1596671.0
If we take 20 away from 24, we end up 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.

On to step 9:
40 divided by 20 is 2 with a remainder of 0.
Put 2 as the next digit of the answer. 
Result so far: 1596671.2
The remainder is 0 after subtracting 40 from 40.
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 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: 1596671.2
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.

Going ahead to step 11:
0 divided by 20 is 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 1596671.2
The remainder is 0 after subtracting 0 from 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 outcome is 1596671.2, with a leftover of 0.0.