59845891 ÷ 604 
The aim is to understand the frequency of 604 in 59845891.

Advancing to step 1:
The number 604 fits into 5 0 times, leaving a remainder of 5.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 5 and we're left with 5.
Grab the next digit (9) from the dividend, add it to 5, then carry on: 59 / 604

On to step 2:
If we divide 59 by 604, we get 0 and a remainder of 59.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 59 leaves us with 59.
Include the next digit (8) from the dividend after 59, then repeat: 598 / 604

Going ahead to step 3:
598 divided by 604 is 0 with a remainder of 598.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 598 and we're left with 598.
Include the next digit (4) from the dividend after 598, then repeat: 5984 / 604

Advancing to step 4:
5984 divided by 604 is 9 with a remainder of 548.
The number 9 becomes the next digit in our result. 
Result so far: 9.0
The remainder is 548 after subtracting 5436 from 5984.
Take the next digit (5) from the dividend and append it to 548, then repeat: 5485 / 604

Going ahead to step 5:
5485 divided by 604 is 9 with a remainder of 49.
The number 9 becomes the next digit in our result. 
Result so far: 99.0
If we take 5436 away from 5485, we end up with 49.
Include the next digit (8) from the dividend after 49, then repeat: 498 / 604

Step 6:
604 goes into 498 0 times with a remainder of 498.
The next digit of our result is 0. 
Result so far: 990.0
If we subtract 0 from 498, we get 498.
Fetch the next digit (9) from the dividend, attach it to 498 and continue: 4989 / 604

On to step 7:
The number 604 fits into 4989 8 times, leaving a remainder of 157.
Record the quotient 8 as the next digit in the result. 
Result so far: 9908.0
If we subtract 4832 from 4989, we get 157.
Bring next digit (1) of the dividend behind the 157 and repeat the process: 1571 / 604

On to step 8:
When dividing 1571 by 604, we get 2 with a remainder of 363.
Write down 2 as next digit of the result. 
Result so far: 99082.0
Subtract 1208 from 1571 to get 363.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3630, and continue the process.

On to step 9:
3630 divided by 604 is 6 with a remainder of 6.
Write down 6 as next digit of the result. 
Result so far: 99082.6
Deduct 3624 from 3630 and we're left with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Going ahead to step 10:
The number 604 fits into 60 0 times, leaving a remainder of 60.
Use 0 as the next digit of our solution. 
Result so far: 99082.6
If we subtract 0 from 60, we 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 11:
604 goes into 600 0 times with a remainder of 600.
The number 0 becomes the next digit in our result. 
Result so far: 99082.6
Subtracting 0 from 600 leaves us with 600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6000, and continue the process.

The final result is 99082.6 with a remainder of 0.06.