We're dividing 17025687 by 404 
The aim is to understand the frequency of 404 in 17025687.

Step 1:
404 goes into 1 0 times with a remainder of 1.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 1, we end up with 1.
Include the next digit (7) from the dividend after 1, then repeat: 17 / 404

On to step 2:
404 can be fit into 17 0 times, resulting in a remainder of 17.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 17 after subtracting 0 from 17.
Fetch the next digit (0) from the dividend, attach it to 17 and continue: 170 / 404

Advancing to step 3:
If we divide 170 by 404, we get 0 and a remainder of 170.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 170 leaves us with 170.
Grab the next digit (2) from the dividend, add it to 170, then carry on: 1702 / 404

On to step 4:
If we divide 1702 by 404, we get 4 and a remainder of 86.
Put 4 as the next digit of the answer. 
Result so far: 4.0
The remainder is 86 after subtracting 1616 from 1702.
Bring next digit (5) of the dividend behind the 86 and repeat the process: 865 / 404

Step 5:
When dividing 865 by 404, we get 2 with a remainder of 57.
Use 2 as the next digit of our solution. 
Result so far: 42.0
If we subtract 808 from 865, we get 57.
Grab the next digit (6) from the dividend, add it to 57, then carry on: 576 / 404

On to step 6:
If we divide 576 by 404, we get 1 and a remainder of 172.
Record the quotient 1 as the next digit in the result. 
Result so far: 421.0
If we subtract 404 from 576, we get 172.
Grab the next digit (8) from the dividend, add it to 172, then carry on: 1728 / 404

Advancing to step 7:
If we divide 1728 by 404, we get 4 and a remainder of 112.
Record the quotient 4 as the next digit in the result. 
Result so far: 4214.0
Deduct 1616 from 1728 and we're left with 112.
Bring next digit (7) of the dividend behind the 112 and repeat the process: 1127 / 404

Going ahead to step 8:
When dividing 1127 by 404, we get 2 with a remainder of 319.
The next digit of our result is 2. 
Result so far: 42142.0
If we take 808 away from 1127, we end up with 319.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3190, and continue the process.

Moving on to step 9:
3190 divided by 404 is 7 with a remainder of 362.
The number 7 becomes the next digit in our result. 
Result so far: 42142.7
If we subtract 2828 from 3190, we get 362.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3620, and continue the process.

Let's proceed to step 10:
404 can be fit into 3620 8 times, resulting in a remainder of 388.
Write down 8 as next digit of the result. 
Result so far: 42142.78
Subtracting 3232 from 3620 leaves us with 388.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3880, and continue the process.

Advancing to step 11:
The number 404 fits into 3880 9 times, leaving a remainder of 244.
Put 9 as the next digit of the answer. 
Result so far: 42142.789
If we take 3636 away from 3880, we end up with 244.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2440, and continue the process.

Moving on to step 12:
The number 404 fits into 2440 6 times, leaving a remainder of 16.
The next digit of our result is 6. 
Result so far: 42142.7896
The remainder is 16 after subtracting 2424 from 2440.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Advancing to step 13:
When dividing 160 by 404, we get 0 with a remainder of 160.
Record the quotient 0 as the next digit in the result. 
Result so far: 42142.7896
The remainder is 160 after subtracting 0 from 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

Moving on to step 14:
When dividing 1600 by 404, we get 3 with a remainder of 388.
Write down 3 as next digit of the result. 
Result so far: 42142.789603
The remainder is 388 after subtracting 1212 from 1600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3880, and continue the process.

Moving on to step 15:
404 goes into 3880 9 times with a remainder of 244.
Write down 9 as next digit of the result. 
Result so far: 42142.7896039
Subtracting 3636 from 3880 leaves us with 244.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2440, and continue the process.

On to step 16:
404 can be fit into 2440 6 times, resulting in a remainder of 16.
Use 6 as the next digit of our solution. 
Result so far: 42142.78960396
Deduct 2424 from 2440 and we're left with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

In conclusion, the division gives 42142.78960396 with a balance of 1.6e-08.