We're dividing 75781524 by 604 
The aim is to understand the frequency of 604 in 75781524.

Moving on to step 1:
If we divide 7 by 604, we get 0 and a remainder of 7.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 7 after subtracting 0 from 7.
Grab the next digit (5) from the dividend, add it to 7, then carry on: 75 / 604

Step 2:
The number 604 fits into 75 0 times, leaving a remainder of 75.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 75 leaves us with 75.
Take the next digit (7) from the dividend and append it to 75, then repeat: 757 / 604

Step 3:
When dividing 757 by 604, we get 1 with a remainder of 153.
The next digit of our result is 1. 
Result so far: 1.0
Deduct 604 from 757 and we're left with 153.
Take the next digit (8) from the dividend and append it to 153, then repeat: 1538 / 604

On to step 4:
1538 divided by 604 is 2 with a remainder of 330.
Write down 2 as next digit of the result. 
Result so far: 12.0
The remainder is 330 after subtracting 1208 from 1538.
Fetch the next digit (1) from the dividend, attach it to 330 and continue: 3301 / 604

Let's proceed to step 5:
The number 604 fits into 3301 5 times, leaving a remainder of 281.
The next digit of our result is 5. 
Result so far: 125.0
Subtracting 3020 from 3301 leaves us with 281.
Bring next digit (5) of the dividend behind the 281 and repeat the process: 2815 / 604

Advancing to step 6:
The number 604 fits into 2815 4 times, leaving a remainder of 399.
Put 4 as the next digit of the answer. 
Result so far: 1254.0
If we subtract 2416 from 2815, we get 399.
Append the next digit (2) from the dividend to 399 and continue with: 3992 / 604

Let's proceed to step 7:
The number 604 fits into 3992 6 times, leaving a remainder of 368.
The number 6 becomes the next digit in our result. 
Result so far: 12546.0
Deduct 3624 from 3992 and we're left with 368.
Take the next digit (4) from the dividend and append it to 368, then repeat: 3684 / 604

Let's proceed to step 8:
604 can be fit into 3684 6 times, resulting in a remainder of 60.
Use 6 as the next digit of our solution. 
Result so far: 125466.0
Subtract 3624 from 3684 to get 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Let's proceed to step 9:
When dividing 600 by 604, we get 0 with a remainder of 600.
The next digit of our result is 0. 
Result so far: 125466.0
The remainder is 600 after subtracting 0 from 600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6000, and continue the process.

Going ahead to step 10:
6000 divided by 604 is 9 with a remainder of 564.
The number 9 becomes the next digit in our result. 
Result so far: 125466.09
The remainder is 564 after subtracting 5436 from 6000.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5640, and continue the process.

Going ahead to step 11:
604 can be fit into 5640 9 times, resulting in a remainder of 204.
Record the quotient 9 as the next digit in the result. 
Result so far: 125466.099
Subtract 5436 from 5640 to get 204.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2040, and continue the process.

The final result is 125466.099 with a remainder of 0.0204.