849658 ÷ 25 
The aim is to understand the frequency of 25 in 849658.

Let's proceed to step 1:
25 goes into 8 0 times with a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Append the next digit (4) from the dividend to 8 and continue with: 84 / 25

Going ahead to step 2:
If we divide 84 by 25, we get 3 and a remainder of 9.
Put 3 as the next digit of the answer. 
Result so far: 3.0
The remainder is 9 after subtracting 75 from 84.
Take the next digit (9) from the dividend and append it to 9, then repeat: 99 / 25

Advancing to step 3:
99 divided by 25 is 3 with a remainder of 24.
Put 3 as the next digit of the answer. 
Result so far: 33.0
Subtract 75 from 99 to get 24.
Include the next digit (6) from the dividend after 24, then repeat: 246 / 25

Let's proceed to step 4:
25 can be fit into 246 9 times, resulting in a remainder of 21.
Record the quotient 9 as the next digit in the result. 
Result so far: 339.0
The remainder is 21 after subtracting 225 from 246.
Fetch the next digit (5) from the dividend, attach it to 21 and continue: 215 / 25

Step 5:
25 can be fit into 215 8 times, resulting in a remainder of 15.
Use 8 as the next digit of our solution. 
Result so far: 3398.0
The remainder is 15 after subtracting 200 from 215.
Fetch the next digit (8) from the dividend, attach it to 15 and continue: 158 / 25

Advancing to step 6:
158 divided by 25 is 6 with a remainder of 8.
The next digit of our result is 6. 
Result so far: 33986.0
Subtracting 150 from 158 leaves us with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Step 7:
If we divide 80 by 25, we get 3 and a remainder of 5.
The number 3 becomes the next digit in our result. 
Result so far: 33986.3
Subtract 75 from 80 to get 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 8:
If we divide 50 by 25, we get 2 and a remainder of 0.
Use 2 as the next digit of our solution. 
Result so far: 33986.32
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.

Moving on to step 9:
25 can be fit into 0 0 times, resulting in a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 33986.32
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.

Step 10:
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: 33986.32
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 quotient of the division is 33986.32, and the remainder is 0.0.