We look at the division of 59990734 by 604 
The aim is to understand the frequency of 604 in 59990734.

Moving on to step 1:
When dividing 5 by 604, we get 0 with a remainder of 5.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 5, we get 5.
Fetch the next digit (9) from the dividend, attach it to 5 and continue: 59 / 604

On to step 2:
604 goes into 59 0 times with a remainder of 59.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 59, we get 59.
Include the next digit (9) from the dividend after 59, then repeat: 599 / 604

Moving on to step 3:
604 can be fit into 599 0 times, resulting in a remainder of 599.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 599, we end up with 599.
Grab the next digit (9) from the dividend, add it to 599, then carry on: 5999 / 604

Moving on to step 4:
604 goes into 5999 9 times with a remainder of 563.
Record the quotient 9 as the next digit in the result. 
Result so far: 9.0
Subtracting 5436 from 5999 leaves us with 563.
Include the next digit (0) from the dividend after 563, then repeat: 5630 / 604

Let's proceed to step 5:
604 goes into 5630 9 times with a remainder of 194.
Write down 9 as next digit of the result. 
Result so far: 99.0
Subtract 5436 from 5630 to get 194.
Take the next digit (7) from the dividend and append it to 194, then repeat: 1947 / 604

Moving on to step 6:
The number 604 fits into 1947 3 times, leaving a remainder of 135.
Use 3 as the next digit of our solution. 
Result so far: 993.0
If we take 1812 away from 1947, we end up with 135.
Grab the next digit (3) from the dividend, add it to 135, then carry on: 1353 / 604

Moving on to step 7:
1353 divided by 604 is 2 with a remainder of 145.
Use 2 as the next digit of our solution. 
Result so far: 9932.0
The remainder is 145 after subtracting 1208 from 1353.
Grab the next digit (4) from the dividend, add it to 145, then carry on: 1454 / 604

Moving on to step 8:
604 goes into 1454 2 times with a remainder of 246.
Write down 2 as next digit of the result. 
Result so far: 99322.0
If we subtract 1208 from 1454, we get 246.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2460, and continue the process.

Let's proceed to step 9:
When dividing 2460 by 604, we get 4 with a remainder of 44.
Use 4 as the next digit of our solution. 
Result so far: 99322.4
Subtracting 2416 from 2460 leaves us with 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Step 10:
When dividing 440 by 604, we get 0 with a remainder of 440.
Put 0 as the next digit of the answer. 
Result so far: 99322.4
If we take 0 away from 440, we end up with 440.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4400, and continue the process.

Step 11:
604 can be fit into 4400 7 times, resulting in a remainder of 172.
The number 7 becomes the next digit in our result. 
Result so far: 99322.407
Subtracting 4228 from 4400 leaves us with 172.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1720, and continue the process.

Going ahead to step 12:
604 goes into 1720 2 times with a remainder of 512.
Use 2 as the next digit of our solution. 
Result so far: 99322.4072
Deduct 1208 from 1720 and we're left with 512.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5120, and continue the process.

Let's proceed to step 13:
604 goes into 5120 8 times with a remainder of 288.
The number 8 becomes the next digit in our result. 
Result so far: 99322.40728
If we take 4832 away from 5120, we end up with 288.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2880, and continue the process.

Going ahead to step 14:
The number 604 fits into 2880 4 times, leaving a remainder of 464.
Use 4 as the next digit of our solution. 
Result so far: 99322.407284
The remainder is 464 after subtracting 2416 from 2880.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4640, and continue the process.

Going ahead to step 15:
When dividing 4640 by 604, we get 7 with a remainder of 412.
Use 7 as the next digit of our solution. 
Result so far: 99322.4072847
If we subtract 4228 from 4640, we get 412.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4120, and continue the process.

Going ahead to step 16:
If we divide 4120 by 604, we get 6 and a remainder of 496.
Put 6 as the next digit of the answer. 
Result so far: 99322.40728476
Subtracting 3624 from 4120 leaves us with 496.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4960, and continue the process.

In conclusion, the division gives 99322.40728476 with a balance of 4.96e-07.