We look at the division of 545675 by 73 
The aim is to understand the frequency of 73 in 545675.

Step 1:
73 goes into 5 0 times with a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 5 after subtracting 0 from 5.
Fetch the next digit (4) from the dividend, attach it to 5 and continue: 54 / 73

Step 2:
73 can be fit into 54 0 times, resulting in a remainder of 54.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 54 to get 54.
Take the next digit (5) from the dividend and append it to 54, then repeat: 545 / 73

On to step 3:
73 can be fit into 545 7 times, resulting in a remainder of 34.
Write down 7 as next digit of the result. 
Result so far: 7.0
Deduct 511 from 545 and we're left with 34.
Append the next digit (6) from the dividend to 34 and continue with: 346 / 73

Moving on to step 4:
When dividing 346 by 73, we get 4 with a remainder of 54.
Write down 4 as next digit of the result. 
Result so far: 74.0
Subtracting 292 from 346 leaves us with 54.
Fetch the next digit (7) from the dividend, attach it to 54 and continue: 547 / 73

Advancing to step 5:
If we divide 547 by 73, we get 7 and a remainder of 36.
Record the quotient 7 as the next digit in the result. 
Result so far: 747.0
Subtract 511 from 547 to get 36.
Fetch the next digit (5) from the dividend, attach it to 36 and continue: 365 / 73

Let's proceed to step 6:
73 can be fit into 365 5 times, resulting in a remainder of 0.
Write down 5 as next digit of the result. 
Result so far: 7475.0
If we take 365 away from 365, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Step 7:
0 divided by 73 is 0 with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 7475.0
If we take 0 away from 0, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

On to step 8:
73 can be fit into 0 0 times, resulting in a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 7475.0
If we subtract 0 from 0, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The final result is 7475.0 with a remainder of 0.0.