We divide 837497 by 25
The aim is to understand the frequency of 25 in 837497.

On to step 1:
8 divided by 25 is 0 with a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Fetch the next digit (3) from the dividend, attach it to 8 and continue: 83 / 25

Moving on to step 2:
83 divided by 25 is 3 with a remainder of 8.
Use 3 as the next digit of our solution. 
Result so far: 3.0
Deduct 75 from 83 and we're left with 8.
Bring next digit (7) of the dividend behind the 8 and repeat the process: 87 / 25

Let's proceed to step 3:
25 goes into 87 3 times with a remainder of 12.
Write down 3 as next digit of the result. 
Result so far: 33.0
Subtracting 75 from 87 leaves us with 12.
Fetch the next digit (4) from the dividend, attach it to 12 and continue: 124 / 25

Step 4:
25 can be fit into 124 4 times, resulting in a remainder of 24.
Write down 4 as next digit of the result. 
Result so far: 334.0
If we take 100 away from 124, we end up with 24.
Bring next digit (9) of the dividend behind the 24 and repeat the process: 249 / 25

Let's proceed to step 5:
The number 25 fits into 249 9 times, leaving a remainder of 24.
The next digit of our result is 9. 
Result so far: 3349.0
Subtracting 225 from 249 leaves us with 24.
Grab the next digit (7) from the dividend, add it to 24, then carry on: 247 / 25

Step 6:
247 divided by 25 is 9 with a remainder of 22.
Record the quotient 9 as the next digit in the result. 
Result so far: 33499.0
Subtract 225 from 247 to get 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

On to step 7:
220 divided by 25 is 8 with a remainder of 20.
Put 8 as the next digit of the answer. 
Result so far: 33499.8
Subtracting 200 from 220 leaves us with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Let's proceed to step 8:
25 goes into 200 8 times with a remainder of 0.
The next digit of our result is 8. 
Result so far: 33499.88
The remainder is 0 after subtracting 200 from 200.
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 33499.88 and a remainder of 0.0.