We're dividing 705821 by 25 
The aim is to understand the frequency of 25 in 705821.

On to step 1:
7 divided by 25 is 0 with a remainder of 7.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 7 leaves us with 7.
Bring next digit (0) of the dividend behind the 7 and repeat the process: 70 / 25

Advancing to step 2:
When dividing 70 by 25, we get 2 with a remainder of 20.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
Deduct 50 from 70 and we're left with 20.
Include the next digit (5) from the dividend after 20, then repeat: 205 / 25

Going ahead to step 3:
If we divide 205 by 25, we get 8 and a remainder of 5.
Write down 8 as next digit of the result. 
Result so far: 28.0
If we take 200 away from 205, we end up with 5.
Take the next digit (8) from the dividend and append it to 5, then repeat: 58 / 25

Advancing to step 4:
25 can be fit into 58 2 times, resulting in a remainder of 8.
Use 2 as the next digit of our solution. 
Result so far: 282.0
If we take 50 away from 58, we end up with 8.
Grab the next digit (2) from the dividend, add it to 8, then carry on: 82 / 25

Going ahead to step 5:
If we divide 82 by 25, we get 3 and a remainder of 7.
Record the quotient 3 as the next digit in the result. 
Result so far: 2823.0
The remainder is 7 after subtracting 75 from 82.
Append the next digit (1) from the dividend to 7 and continue with: 71 / 25

Step 6:
25 goes into 71 2 times with a remainder of 21.
The next digit of our result is 2. 
Result so far: 28232.0
Deduct 50 from 71 and we're left with 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Advancing to step 7:
The number 25 fits into 210 8 times, leaving a remainder of 10.
Record the quotient 8 as the next digit in the result. 
Result so far: 28232.8
Deduct 200 from 210 and we're left 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.

On to step 8:
The number 25 fits into 100 4 times, leaving a remainder of 0.
The next digit of our result is 4. 
Result so far: 28232.84
Subtract 100 from 100 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.

Moving on to step 9:
25 goes into 0 0 times with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 28232.84
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.

Moving on to step 10:
If we divide 0 by 25, we get 0 and a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 28232.84
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 result is 28232.84 with a remainder of 0.0.