28554243 ÷ 73 
The aim is to understand the frequency of 73 in 28554243.

Advancing to step 1:
73 goes into 2 0 times with a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 2 and we're left with 2.
Bring next digit (8) of the dividend behind the 2 and repeat the process: 28 / 73

Advancing to step 2:
73 goes into 28 0 times with a remainder of 28.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 28, we get 28.
Take the next digit (5) from the dividend and append it to 28, then repeat: 285 / 73

On to step 3:
If we divide 285 by 73, we get 3 and a remainder of 66.
The next digit of our result is 3. 
Result so far: 3.0
If we take 219 away from 285, we end up with 66.
Grab the next digit (5) from the dividend, add it to 66, then carry on: 665 / 73

Moving on to step 4:
665 divided by 73 is 9 with a remainder of 8.
Use 9 as the next digit of our solution. 
Result so far: 39.0
If we subtract 657 from 665, we get 8.
Append the next digit (4) from the dividend to 8 and continue with: 84 / 73

Let's proceed to step 5:
84 divided by 73 is 1 with a remainder of 11.
The number 1 becomes the next digit in our result. 
Result so far: 391.0
Subtract 73 from 84 to get 11.
Take the next digit (2) from the dividend and append it to 11, then repeat: 112 / 73

Let's proceed to step 6:
73 goes into 112 1 times with a remainder of 39.
Put 1 as the next digit of the answer. 
Result so far: 3911.0
Subtracting 73 from 112 leaves us with 39.
Bring next digit (4) of the dividend behind the 39 and repeat the process: 394 / 73

Moving on to step 7:
73 can be fit into 394 5 times, resulting in a remainder of 29.
The number 5 becomes the next digit in our result. 
Result so far: 39115.0
Deduct 365 from 394 and we're left with 29.
Include the next digit (3) from the dividend after 29, then repeat: 293 / 73

Going ahead to step 8:
The number 73 fits into 293 4 times, leaving a remainder of 1.
The next digit of our result is 4. 
Result so far: 391154.0
Subtract 292 from 293 to get 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

On to step 9:
When dividing 10 by 73, we get 0 with a remainder of 10.
The next digit of our result is 0. 
Result so far: 391154.0
If we subtract 0 from 10, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Moving on to step 10:
The number 73 fits into 100 1 times, leaving a remainder of 27.
Write down 1 as next digit of the result. 
Result so far: 391154.01
The remainder is 27 after subtracting 73 from 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

Going ahead to step 11:
When dividing 270 by 73, we get 3 with a remainder of 51.
The next digit of our result is 3. 
Result so far: 391154.013
Subtracting 219 from 270 leaves us with 51.
Since there are no more digits in the dividend, we add a zero to the remainder making it 510, and continue the process.

Step 12:
When dividing 510 by 73, we get 6 with a remainder of 72.
The number 6 becomes the next digit in our result. 
Result so far: 391154.0136
Subtracting 438 from 510 leaves us with 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

Going ahead to step 13:
73 can be fit into 720 9 times, resulting in a remainder of 63.
Put 9 as the next digit of the answer. 
Result so far: 391154.01369
Deduct 657 from 720 and we're left with 63.
Since there are no more digits in the dividend, we add a zero to the remainder making it 630, and continue the process.

Moving on to step 14:
73 goes into 630 8 times with a remainder of 46.
Put 8 as the next digit of the answer. 
Result so far: 391154.013698
The remainder is 46 after subtracting 584 from 630.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Let's proceed to step 15:
460 divided by 73 is 6 with a remainder of 22.
The next digit of our result is 6. 
Result so far: 391154.0136986
If we subtract 438 from 460, we get 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Advancing to step 16:
The number 73 fits into 220 3 times, leaving a remainder of 1.
Use 3 as the next digit of our solution. 
Result so far: 391154.01369863
Deduct 219 from 220 and we're left with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

The final result is 391154.01369863 with a remainder of 1e-09.