We look at the division of 59854985 by 604 
The aim is to understand the frequency of 604 in 59854985.

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.
Bring next digit (9) of the dividend behind the 5 and repeat the process: 59 / 604

Advancing to step 2:
When dividing 59 by 604, we get 0 with a remainder of 59.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 59 leaves us with 59.
Take the next digit (8) from the dividend and append it to 59, then repeat: 598 / 604

On to step 3:
604 can be fit into 598 0 times, resulting in a remainder of 598.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 598 after subtracting 0 from 598.
Fetch the next digit (5) from the dividend, attach it to 598 and continue: 5985 / 604

Going ahead to step 4:
The number 604 fits into 5985 9 times, leaving a remainder of 549.
Write down 9 as next digit of the result. 
Result so far: 9.0
If we take 5436 away from 5985, we end up with 549.
Bring next digit (4) of the dividend behind the 549 and repeat the process: 5494 / 604

Advancing to step 5:
5494 divided by 604 is 9 with a remainder of 58.
The number 9 becomes the next digit in our result. 
Result so far: 99.0
The remainder is 58 after subtracting 5436 from 5494.
Bring next digit (9) of the dividend behind the 58 and repeat the process: 589 / 604

Going ahead to step 6:
The number 604 fits into 589 0 times, leaving a remainder of 589.
Put 0 as the next digit of the answer. 
Result so far: 990.0
Subtract 0 from 589 to get 589.
Grab the next digit (8) from the dividend, add it to 589, then carry on: 5898 / 604

On to step 7:
The number 604 fits into 5898 9 times, leaving a remainder of 462.
Record the quotient 9 as the next digit in the result. 
Result so far: 9909.0
Subtracting 5436 from 5898 leaves us with 462.
Fetch the next digit (5) from the dividend, attach it to 462 and continue: 4625 / 604

Moving on to step 8:
4625 divided by 604 is 7 with a remainder of 397.
The next digit of our result is 7. 
Result so far: 99097.0
Subtracting 4228 from 4625 leaves us with 397.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3970, and continue the process.

Advancing to step 9:
The number 604 fits into 3970 6 times, leaving a remainder of 346.
Write down 6 as next digit of the result. 
Result so far: 99097.6
The remainder is 346 after subtracting 3624 from 3970.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3460, and continue the process.

On to step 10:
604 goes into 3460 5 times with a remainder of 440.
The number 5 becomes the next digit in our result. 
Result so far: 99097.65
If we subtract 3020 from 3460, we get 440.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4400, and continue the process.

Advancing to step 11:
604 can be fit into 4400 7 times, resulting in a remainder of 172.
Put 7 as the next digit of the answer. 
Result so far: 99097.657
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.

On to step 12:
604 can be fit into 1720 2 times, resulting in a remainder of 512.
Put 2 as the next digit of the answer. 
Result so far: 99097.6572
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.

Step 13:
5120 divided by 604 is 8 with a remainder of 288.
Use 8 as the next digit of our solution. 
Result so far: 99097.65728
Deduct 4832 from 5120 and we're left 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:
604 can be fit into 2880 4 times, resulting in a remainder of 464.
Record the quotient 4 as the next digit in the result. 
Result so far: 99097.657284
If we subtract 2416 from 2880, we get 464.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4640, and continue the process.

Moving on 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: 99097.6572847
Subtracting 4228 from 4640 leaves us with 412.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4120, and continue the process.

Moving on to step 16:
604 can be fit into 4120 6 times, resulting in a remainder of 496.
Write down 6 as next digit of the result. 
Result so far: 99097.65728476
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.

After the division, we end up with 99097.65728476 and a remainder of 4.96e-07.