25047307 ÷ 20 
The aim is to understand the frequency of 20 in 25047307.

On to step 1:
If we divide 2 by 20, we get 0 and a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 2, we end up with 2.
Include the next digit (5) from the dividend after 2, then repeat: 25 / 20

Advancing to step 2:
20 goes into 25 1 times with a remainder of 5.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtracting 20 from 25 leaves us with 5.
Fetch the next digit (0) from the dividend, attach it to 5 and continue: 50 / 20

Moving on to step 3:
20 can be fit into 50 2 times, resulting in a remainder of 10.
Record the quotient 2 as the next digit in the result. 
Result so far: 12.0
If we subtract 40 from 50, we get 10.
Fetch the next digit (4) from the dividend, attach it to 10 and continue: 104 / 20

Advancing to step 4:
104 divided by 20 is 5 with a remainder of 4.
The number 5 becomes the next digit in our result. 
Result so far: 125.0
Subtracting 100 from 104 leaves us with 4.
Grab the next digit (7) from the dividend, add it to 4, then carry on: 47 / 20

Advancing to step 5:
When dividing 47 by 20, we get 2 with a remainder of 7.
Use 2 as the next digit of our solution. 
Result so far: 1252.0
If we subtract 40 from 47, we get 7.
Append the next digit (3) from the dividend to 7 and continue with: 73 / 20

Step 6:
If we divide 73 by 20, we get 3 and a remainder of 13.
Record the quotient 3 as the next digit in the result. 
Result so far: 12523.0
Subtracting 60 from 73 leaves us with 13.
Take the next digit (0) from the dividend and append it to 13, then repeat: 130 / 20

Going ahead to step 7:
20 goes into 130 6 times with a remainder of 10.
Put 6 as the next digit of the answer. 
Result so far: 125236.0
If we subtract 120 from 130, we get 10.
Append the next digit (7) from the dividend to 10 and continue with: 107 / 20

On to step 8:
When dividing 107 by 20, we get 5 with a remainder of 7.
The number 5 becomes the next digit in our result. 
Result so far: 1252365.0
The remainder is 7 after subtracting 100 from 107.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Moving on to step 9:
When dividing 70 by 20, we get 3 with a remainder of 10.
Use 3 as the next digit of our solution. 
Result so far: 1252365.3
Subtract 60 from 70 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 10:
The number 20 fits into 100 5 times, leaving a remainder of 0.
Write down 5 as next digit of the result. 
Result so far: 1252365.35
If we subtract 100 from 100, 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.

On to step 11:
20 goes into 0 0 times with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 1252365.35
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.

Step 12:
0 divided by 20 is 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 1252365.35
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 result is 1252365.35 with a remainder of 0.0.