We divide 71664743 by 25
The aim is to understand the frequency of 25 in 71664743.

Moving on to step 1:
25 can be fit into 7 0 times, resulting in a remainder of 7.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 7 after subtracting 0 from 7.
Grab the next digit (1) from the dividend, add it to 7, then carry on: 71 / 25

Moving on to step 2:
25 can be fit into 71 2 times, resulting in a remainder of 21.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
If we subtract 50 from 71, we get 21.
Append the next digit (6) from the dividend to 21 and continue with: 216 / 25

Going ahead to step 3:
25 can be fit into 216 8 times, resulting in a remainder of 16.
Record the quotient 8 as the next digit in the result. 
Result so far: 28.0
If we take 200 away from 216, we end up with 16.
Take the next digit (6) from the dividend and append it to 16, then repeat: 166 / 25

Step 4:
25 goes into 166 6 times with a remainder of 16.
The number 6 becomes the next digit in our result. 
Result so far: 286.0
If we take 150 away from 166, we end up with 16.
Fetch the next digit (4) from the dividend, attach it to 16 and continue: 164 / 25

Moving on to step 5:
25 goes into 164 6 times with a remainder of 14.
The number 6 becomes the next digit in our result. 
Result so far: 2866.0
If we subtract 150 from 164, we get 14.
Fetch the next digit (7) from the dividend, attach it to 14 and continue: 147 / 25

Going ahead to step 6:
25 can be fit into 147 5 times, resulting in a remainder of 22.
The next digit of our result is 5. 
Result so far: 28665.0
Subtracting 125 from 147 leaves us with 22.
Fetch the next digit (4) from the dividend, attach it to 22 and continue: 224 / 25

Going ahead to step 7:
224 divided by 25 is 8 with a remainder of 24.
The next digit of our result is 8. 
Result so far: 286658.0
The remainder is 24 after subtracting 200 from 224.
Take the next digit (3) from the dividend and append it to 24, then repeat: 243 / 25

Let's proceed to step 8:
The number 25 fits into 243 9 times, leaving a remainder of 18.
Write down 9 as next digit of the result. 
Result so far: 2866589.0
Subtract 225 from 243 to get 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Let's proceed to step 9:
25 can be fit into 180 7 times, resulting in a remainder of 5.
Record the quotient 7 as the next digit in the result. 
Result so far: 2866589.7
The remainder is 5 after subtracting 175 from 180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Advancing to step 10:
25 can be fit into 50 2 times, resulting in a remainder of 0.
The number 2 becomes the next digit in our result. 
Result so far: 2866589.72
If we subtract 50 from 50, 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.

Let's proceed to step 11:
If we divide 0 by 25, we get 0 and a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 2866589.72
If we subtract 0 from 0, 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.

Moving on to step 12:
The number 25 fits into 0 0 times, leaving a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 2866589.72
If we subtract 0 from 0, 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.

After the division, we end up with 2866589.72 and a remainder of 0.0.