435507 divided by 604 
The aim is to understand the frequency of 604 in 435507.

Step 1:
4 divided by 604 is 0 with a remainder of 4.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 4, we end up with 4.
Bring next digit (3) of the dividend behind the 4 and repeat the process: 43 / 604

Advancing to step 2:
The number 604 fits into 43 0 times, leaving a remainder of 43.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 43 after subtracting 0 from 43.
Include the next digit (5) from the dividend after 43, then repeat: 435 / 604

Moving on to step 3:
The number 604 fits into 435 0 times, leaving a remainder of 435.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 435, we get 435.
Grab the next digit (5) from the dividend, add it to 435, then carry on: 4355 / 604

On to step 4:
If we divide 4355 by 604, we get 7 and a remainder of 127.
Record the quotient 7 as the next digit in the result. 
Result so far: 7.0
If we subtract 4228 from 4355, we get 127.
Include the next digit (0) from the dividend after 127, then repeat: 1270 / 604

Step 5:
604 goes into 1270 2 times with a remainder of 62.
Put 2 as the next digit of the answer. 
Result so far: 72.0
If we take 1208 away from 1270, we end up with 62.
Bring next digit (7) of the dividend behind the 62 and repeat the process: 627 / 604

Let's proceed to step 6:
If we divide 627 by 604, we get 1 and a remainder of 23.
Use 1 as the next digit of our solution. 
Result so far: 721.0
The remainder is 23 after subtracting 604 from 627.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

Advancing to step 7:
The number 604 fits into 230 0 times, leaving a remainder of 230.
Use 0 as the next digit of our solution. 
Result so far: 721.0
The remainder is 230 after subtracting 0 from 230.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2300, and continue the process.

Moving on to step 8:
2300 divided by 604 is 3 with a remainder of 488.
Put 3 as the next digit of the answer. 
Result so far: 721.03
Deduct 1812 from 2300 and we're left with 488.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4880, and continue the process.

Advancing to step 9:
The number 604 fits into 4880 8 times, leaving a remainder of 48.
Put 8 as the next digit of the answer. 
Result so far: 721.038
Subtract 4832 from 4880 to get 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Advancing to step 10:
604 can be fit into 480 0 times, resulting in a remainder of 480.
Record the quotient 0 as the next digit in the result. 
Result so far: 721.038
If we subtract 0 from 480, we get 480.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4800, and continue the process.

Advancing to step 11:
When dividing 4800 by 604, we get 7 with a remainder of 572.
Write down 7 as next digit of the result. 
Result so far: 721.03807
If we take 4228 away from 4800, we end up with 572.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5720, and continue the process.

Going ahead to step 12:
5720 divided by 604 is 9 with a remainder of 284.
The number 9 becomes the next digit in our result. 
Result so far: 721.038079
If we subtract 5436 from 5720, we get 284.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2840, and continue the process.

Let's proceed to step 13:
604 goes into 2840 4 times with a remainder of 424.
Write down 4 as next digit of the result. 
Result so far: 721.0380794
If we subtract 2416 from 2840, we get 424.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4240, and continue the process.

Moving on to step 14:
604 can be fit into 4240 7 times, resulting in a remainder of 12.
Use 7 as the next digit of our solution. 
Result so far: 721.03807947
Deduct 4228 from 4240 and we're left with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Our division results in 721.03807947 with a remaining 1.2e-08.