We're dividing 604405 by 73 
The aim is to understand the frequency of 73 in 604405.

Advancing to step 1:
The number 73 fits into 6 0 times, leaving a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Include the next digit (0) from the dividend after 6, then repeat: 60 / 73

Step 2:
If we divide 60 by 73, we get 0 and a remainder of 60.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 60, we get 60.
Grab the next digit (4) from the dividend, add it to 60, then carry on: 604 / 73

On to step 3:
73 goes into 604 8 times with a remainder of 20.
Put 8 as the next digit of the answer. 
Result so far: 8.0
The remainder is 20 after subtracting 584 from 604.
Take the next digit (4) from the dividend and append it to 20, then repeat: 204 / 73

Step 4:
The number 73 fits into 204 2 times, leaving a remainder of 58.
Put 2 as the next digit of the answer. 
Result so far: 82.0
The remainder is 58 after subtracting 146 from 204.
Append the next digit (0) from the dividend to 58 and continue with: 580 / 73

On to step 5:
If we divide 580 by 73, we get 7 and a remainder of 69.
The next digit of our result is 7. 
Result so far: 827.0
Deduct 511 from 580 and we're left with 69.
Take the next digit (5) from the dividend and append it to 69, then repeat: 695 / 73

Step 6:
73 can be fit into 695 9 times, resulting in a remainder of 38.
The number 9 becomes the next digit in our result. 
Result so far: 8279.0
If we subtract 657 from 695, we get 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Going ahead to step 7:
380 divided by 73 is 5 with a remainder of 15.
Use 5 as the next digit of our solution. 
Result so far: 8279.5
Deduct 365 from 380 and we're left with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Step 8:
150 divided by 73 is 2 with a remainder of 4.
The next digit of our result is 2. 
Result so far: 8279.52
The remainder is 4 after subtracting 146 from 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

On to step 9:
When dividing 40 by 73, we get 0 with a remainder of 40.
Use 0 as the next digit of our solution. 
Result so far: 8279.52
Subtract 0 from 40 to get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Let's proceed to step 10:
When dividing 400 by 73, we get 5 with a remainder of 35.
Put 5 as the next digit of the answer. 
Result so far: 8279.5205
Subtract 365 from 400 to get 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Advancing to step 11:
The number 73 fits into 350 4 times, leaving a remainder of 58.
Put 4 as the next digit of the answer. 
Result so far: 8279.52054
If we take 292 away from 350, we end up with 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

Moving on to step 12:
If we divide 580 by 73, we get 7 and a remainder of 69.
Use 7 as the next digit of our solution. 
Result so far: 8279.520547
Subtracting 511 from 580 leaves us with 69.
Since there are no more digits in the dividend, we add a zero to the remainder making it 690, and continue the process.

On to step 13:
73 can be fit into 690 9 times, resulting in a remainder of 33.
Write down 9 as next digit of the result. 
Result so far: 8279.5205479
If we subtract 657 from 690, we get 33.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

Moving on to step 14:
The number 73 fits into 330 4 times, leaving a remainder of 38.
The next digit of our result is 4. 
Result so far: 8279.52054794
If we subtract 292 from 330, we get 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

The final outcome is 8279.52054794, with a leftover of 3.8e-08.