Let's divide 778287 by 20
The aim is to understand the frequency of 20 in 778287.

Advancing to step 1:
When dividing 7 by 20, we get 0 with a remainder of 7.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 7 after subtracting 0 from 7.
Include the next digit (7) from the dividend after 7, then repeat: 77 / 20

Let's proceed to step 2:
If we divide 77 by 20, we get 3 and a remainder of 17.
Write down 3 as next digit of the result. 
Result so far: 3.0
Subtract 60 from 77 to get 17.
Take the next digit (8) from the dividend and append it to 17, then repeat: 178 / 20

Going ahead to step 3:
178 divided by 20 is 8 with a remainder of 18.
Put 8 as the next digit of the answer. 
Result so far: 38.0
If we take 160 away from 178, we end up with 18.
Take the next digit (2) from the dividend and append it to 18, then repeat: 182 / 20

Moving on to step 4:
If we divide 182 by 20, we get 9 and a remainder of 2.
The next digit of our result is 9. 
Result so far: 389.0
Subtracting 180 from 182 leaves us with 2.
Fetch the next digit (8) from the dividend, attach it to 2 and continue: 28 / 20

On to step 5:
20 goes into 28 1 times with a remainder of 8.
Put 1 as the next digit of the answer. 
Result so far: 3891.0
Subtracting 20 from 28 leaves us with 8.
Include the next digit (7) from the dividend after 8, then repeat: 87 / 20

On to step 6:
If we divide 87 by 20, we get 4 and a remainder of 7.
Record the quotient 4 as the next digit in the result. 
Result so far: 38914.0
The remainder is 7 after subtracting 80 from 87.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Let's proceed to step 7:
70 divided by 20 is 3 with a remainder of 10.
Record the quotient 3 as the next digit in the result. 
Result so far: 38914.3
Deduct 60 from 70 and we're left 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.

On to step 8:
When dividing 100 by 20, we get 5 with a remainder of 0.
Put 5 as the next digit of the answer. 
Result so far: 38914.35
Subtract 100 from 100 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.

Let's proceed to step 9:
20 goes into 0 0 times with a remainder of 0.
The next digit of our result is 0. 
Result so far: 38914.35
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.

Going ahead to step 10:
20 goes into 0 0 times with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 38914.35
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.

Our division results in 38914.35 with a remaining 0.0.