We're dividing 543387 by 73 
The aim is to understand the frequency of 73 in 543387.

Going ahead to step 1:
The number 73 fits into 5 0 times, leaving a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 5 leaves us with 5.
Take the next digit (4) from the dividend and append it to 5, then repeat: 54 / 73

Step 2:
If we divide 54 by 73, we get 0 and a remainder of 54.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 54 leaves us with 54.
Bring next digit (3) of the dividend behind the 54 and repeat the process: 543 / 73

Moving on to step 3:
The number 73 fits into 543 7 times, leaving a remainder of 32.
Put 7 as the next digit of the answer. 
Result so far: 7.0
If we subtract 511 from 543, we get 32.
Append the next digit (3) from the dividend to 32 and continue with: 323 / 73

On to step 4:
If we divide 323 by 73, we get 4 and a remainder of 31.
Use 4 as the next digit of our solution. 
Result so far: 74.0
Deduct 292 from 323 and we're left with 31.
Bring next digit (8) of the dividend behind the 31 and repeat the process: 318 / 73

On to step 5:
If we divide 318 by 73, we get 4 and a remainder of 26.
Put 4 as the next digit of the answer. 
Result so far: 744.0
Subtract 292 from 318 to get 26.
Fetch the next digit (7) from the dividend, attach it to 26 and continue: 267 / 73

Advancing to step 6:
If we divide 267 by 73, we get 3 and a remainder of 48.
Put 3 as the next digit of the answer. 
Result so far: 7443.0
If we take 219 away from 267, we end up with 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Advancing to step 7:
73 can be fit into 480 6 times, resulting in a remainder of 42.
Write down 6 as next digit of the result. 
Result so far: 7443.6
If we subtract 438 from 480, we get 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Advancing to step 8:
420 divided by 73 is 5 with a remainder of 55.
The next digit of our result is 5. 
Result so far: 7443.65
The remainder is 55 after subtracting 365 from 420.
Since there are no more digits in the dividend, we add a zero to the remainder making it 550, and continue the process.

Advancing to step 9:
73 goes into 550 7 times with a remainder of 39.
Write down 7 as next digit of the result. 
Result so far: 7443.657
Subtract 511 from 550 to get 39.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

Step 10:
The number 73 fits into 390 5 times, leaving a remainder of 25.
The next digit of our result is 5. 
Result so far: 7443.6575
Subtracting 365 from 390 leaves us with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

On to step 11:
250 divided by 73 is 3 with a remainder of 31.
Use 3 as the next digit of our solution. 
Result so far: 7443.65753
Subtract 219 from 250 to get 31.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

On to step 12:
When dividing 310 by 73, we get 4 with a remainder of 18.
Put 4 as the next digit of the answer. 
Result so far: 7443.657534
If we subtract 292 from 310, we get 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Advancing to step 13:
73 can be fit into 180 2 times, resulting in a remainder of 34.
Record the quotient 2 as the next digit in the result. 
Result so far: 7443.6575342
If we take 146 away from 180, we end up with 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Let's proceed to step 14:
340 divided by 73 is 4 with a remainder of 48.
The number 4 becomes the next digit in our result. 
Result so far: 7443.65753424
If we subtract 292 from 340, we get 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

In conclusion, the division gives 7443.65753424 with a balance of 4.8e-08.