536805 divided by 25 
The aim is to understand the frequency of 25 in 536805.

Step 1:
5 divided by 25 is 0 with a remainder of 5.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 5 after subtracting 0 from 5.
Grab the next digit (3) from the dividend, add it to 5, then carry on: 53 / 25

Moving on to step 2:
When dividing 53 by 25, we get 2 with a remainder of 3.
Write down 2 as next digit of the result. 
Result so far: 2.0
Deduct 50 from 53 and we're left with 3.
Include the next digit (6) from the dividend after 3, then repeat: 36 / 25

Moving on to step 3:
25 can be fit into 36 1 times, resulting in a remainder of 11.
Use 1 as the next digit of our solution. 
Result so far: 21.0
If we subtract 25 from 36, we get 11.
Fetch the next digit (8) from the dividend, attach it to 11 and continue: 118 / 25

Let's proceed to step 4:
25 can be fit into 118 4 times, resulting in a remainder of 18.
Write down 4 as next digit of the result. 
Result so far: 214.0
If we subtract 100 from 118, we get 18.
Bring next digit (0) of the dividend behind the 18 and repeat the process: 180 / 25

Going ahead to step 5:
25 can be fit into 180 7 times, resulting in a remainder of 5.
Write down 7 as next digit of the result. 
Result so far: 2147.0
Subtracting 175 from 180 leaves us with 5.
Grab the next digit (5) from the dividend, add it to 5, then carry on: 55 / 25

Let's proceed to step 6:
55 divided by 25 is 2 with a remainder of 5.
The next digit of our result is 2. 
Result so far: 21472.0
If we take 50 away from 55, we end up with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Moving on to step 7:
When dividing 50 by 25, we get 2 with a remainder of 0.
Write down 2 as next digit of the result. 
Result so far: 21472.2
Subtracting 50 from 50 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.

Let's proceed to step 8:
25 goes into 0 0 times with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 21472.2
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.

Let's proceed to step 9:
0 divided by 25 is 0 with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 21472.2
Deduct 0 from 0 and we're left 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.

The final outcome is 21472.2, with a leftover of 0.0.