We look at the division of 593549 by 25 
The aim is to understand the frequency of 25 in 593549.

Let's proceed to step 1:
5 divided by 25 is 0 with a remainder of 5.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 5 to get 5.
Append the next digit (9) from the dividend to 5 and continue with: 59 / 25

On to step 2:
59 divided by 25 is 2 with a remainder of 9.
Write down 2 as next digit of the result. 
Result so far: 2.0
If we subtract 50 from 59, we get 9.
Grab the next digit (3) from the dividend, add it to 9, then carry on: 93 / 25

Let's proceed to step 3:
25 can be fit into 93 3 times, resulting in a remainder of 18.
Use 3 as the next digit of our solution. 
Result so far: 23.0
The remainder is 18 after subtracting 75 from 93.
Fetch the next digit (5) from the dividend, attach it to 18 and continue: 185 / 25

On to step 4:
25 can be fit into 185 7 times, resulting in a remainder of 10.
The next digit of our result is 7. 
Result so far: 237.0
Deduct 175 from 185 and we're left with 10.
Fetch the next digit (4) from the dividend, attach it to 10 and continue: 104 / 25

Let's proceed to step 5:
25 goes into 104 4 times with a remainder of 4.
Put 4 as the next digit of the answer. 
Result so far: 2374.0
The remainder is 4 after subtracting 100 from 104.
Grab the next digit (9) from the dividend, add it to 4, then carry on: 49 / 25

Going ahead to step 6:
The number 25 fits into 49 1 times, leaving a remainder of 24.
Put 1 as the next digit of the answer. 
Result so far: 23741.0
If we subtract 25 from 49, we get 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Moving on to step 7:
The number 25 fits into 240 9 times, leaving a remainder of 15.
The number 9 becomes the next digit in our result. 
Result so far: 23741.9
Deduct 225 from 240 and we're left with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Advancing to step 8:
25 can be fit into 150 6 times, resulting in a remainder of 0.
Write down 6 as next digit of the result. 
Result so far: 23741.96
If we take 150 away from 150, 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.

Advancing to step 9:
When dividing 0 by 25, we get 0 with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 23741.96
If we take 0 away from 0, 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.

On to step 10:
When dividing 0 by 25, we get 0 with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 23741.96
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 23741.96 and a remainder of 0.0.