We divide 53233981 by 25
The aim is to understand the frequency of 25 in 53233981.

Advancing to step 1:
The number 25 fits into 5 0 times, leaving a remainder of 5.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 5 leaves us with 5.
Include the next digit (3) from the dividend after 5, then repeat: 53 / 25

Step 2:
25 goes into 53 2 times with a remainder of 3.
Put 2 as the next digit of the answer. 
Result so far: 2.0
If we subtract 50 from 53, we get 3.
Take the next digit (2) from the dividend and append it to 3, then repeat: 32 / 25

Let's proceed to step 3:
When dividing 32 by 25, we get 1 with a remainder of 7.
Put 1 as the next digit of the answer. 
Result so far: 21.0
If we subtract 25 from 32, we get 7.
Take the next digit (3) from the dividend and append it to 7, then repeat: 73 / 25

On to step 4:
25 goes into 73 2 times with a remainder of 23.
Put 2 as the next digit of the answer. 
Result so far: 212.0
Subtract 50 from 73 to get 23.
Fetch the next digit (3) from the dividend, attach it to 23 and continue: 233 / 25

Step 5:
25 can be fit into 233 9 times, resulting in a remainder of 8.
Record the quotient 9 as the next digit in the result. 
Result so far: 2129.0
If we subtract 225 from 233, we get 8.
Take the next digit (9) from the dividend and append it to 8, then repeat: 89 / 25

Moving on to step 6:
25 can be fit into 89 3 times, resulting in a remainder of 14.
Use 3 as the next digit of our solution. 
Result so far: 21293.0
If we take 75 away from 89, we end up with 14.
Fetch the next digit (8) from the dividend, attach it to 14 and continue: 148 / 25

Going ahead to step 7:
25 goes into 148 5 times with a remainder of 23.
Put 5 as the next digit of the answer. 
Result so far: 212935.0
Subtracting 125 from 148 leaves us with 23.
Bring next digit (1) of the dividend behind the 23 and repeat the process: 231 / 25

On to step 8:
25 goes into 231 9 times with a remainder of 6.
Record the quotient 9 as the next digit in the result. 
Result so far: 2129359.0
If we take 225 away from 231, we end up with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

On to step 9:
25 goes into 60 2 times with a remainder of 10.
The number 2 becomes the next digit in our result. 
Result so far: 2129359.2
If we take 50 away from 60, we end up 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.

Step 10:
The number 25 fits into 100 4 times, leaving a remainder of 0.
The number 4 becomes the next digit in our result. 
Result so far: 2129359.24
If we take 100 away from 100, 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.

Moving on to step 11:
When dividing 0 by 25, we get 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 2129359.24
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.

Going ahead to step 12:
25 goes into 0 0 times with a remainder of 0.
The next digit of our result is 0. 
Result so far: 2129359.24
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 2129359.24, with a leftover of 0.0.