We're dividing 374057 by 20 
The aim is to understand the frequency of 20 in 374057.

Going ahead to step 1:
When dividing 3 by 20, we get 0 with a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 3 after subtracting 0 from 3.
Take the next digit (7) from the dividend and append it to 3, then repeat: 37 / 20

Advancing to step 2:
The number 20 fits into 37 1 times, leaving a remainder of 17.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtracting 20 from 37 leaves us with 17.
Grab the next digit (4) from the dividend, add it to 17, then carry on: 174 / 20

Moving on to step 3:
The number 20 fits into 174 8 times, leaving a remainder of 14.
The next digit of our result is 8. 
Result so far: 18.0
If we subtract 160 from 174, we get 14.
Take the next digit (0) from the dividend and append it to 14, then repeat: 140 / 20

Going ahead to step 4:
140 divided by 20 is 7 with a remainder of 0.
Put 7 as the next digit of the answer. 
Result so far: 187.0
Deduct 140 from 140 and we're left with 0.
Grab the next digit (5) from the dividend, add it to 0, then carry on: 5 / 20

Let's proceed to step 5:
5 divided by 20 is 0 with a remainder of 5.
Write down 0 as next digit of the result. 
Result so far: 1870.0
Deduct 0 from 5 and we're left with 5.
Include the next digit (7) from the dividend after 5, then repeat: 57 / 20

Let's proceed to step 6:
If we divide 57 by 20, we get 2 and a remainder of 17.
The number 2 becomes the next digit in our result. 
Result so far: 18702.0
Subtracting 40 from 57 leaves us with 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

On to step 7:
If we divide 170 by 20, we get 8 and a remainder of 10.
Write down 8 as next digit of the result. 
Result so far: 18702.8
Subtracting 160 from 170 leaves us with 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:
100 divided by 20 is 5 with a remainder of 0.
The next digit of our result is 5. 
Result so far: 18702.85
Subtracting 100 from 100 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.

Let's proceed to step 9:
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: 18702.85
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.

Step 10:
If we divide 0 by 20, we get 0 and a remainder of 0.
The next digit of our result is 0. 
Result so far: 18702.85
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.

The final outcome is 18702.85, with a leftover of 0.0.