We're dividing 288508 by 73 
The aim is to understand the frequency of 73 in 288508.

On to step 1:
73 can be fit into 2 0 times, resulting in a remainder of 2.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 2 to get 2.
Grab the next digit (8) from the dividend, add it to 2, then carry on: 28 / 73

On to step 2:
When dividing 28 by 73, we get 0 with a remainder of 28.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 28 to get 28.
Include the next digit (8) from the dividend after 28, then repeat: 288 / 73

Step 3:
When dividing 288 by 73, we get 3 with a remainder of 69.
Use 3 as the next digit of our solution. 
Result so far: 3.0
Subtract 219 from 288 to get 69.
Bring next digit (5) of the dividend behind the 69 and repeat the process: 695 / 73

Advancing to step 4:
73 goes into 695 9 times with a remainder of 38.
Record the quotient 9 as the next digit in the result. 
Result so far: 39.0
Subtracting 657 from 695 leaves us with 38.
Include the next digit (0) from the dividend after 38, then repeat: 380 / 73

Advancing to step 5:
When dividing 380 by 73, we get 5 with a remainder of 15.
The number 5 becomes the next digit in our result. 
Result so far: 395.0
Subtract 365 from 380 to get 15.
Append the next digit (8) from the dividend to 15 and continue with: 158 / 73

Advancing to step 6:
158 divided by 73 is 2 with a remainder of 12.
Put 2 as the next digit of the answer. 
Result so far: 3952.0
Subtract 146 from 158 to get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Let's proceed to step 7:
When dividing 120 by 73, we get 1 with a remainder of 47.
The number 1 becomes the next digit in our result. 
Result so far: 3952.1
If we subtract 73 from 120, we get 47.
Since there are no more digits in the dividend, we add a zero to the remainder making it 470, and continue the process.

Advancing to step 8:
If we divide 470 by 73, we get 6 and a remainder of 32.
Use 6 as the next digit of our solution. 
Result so far: 3952.16
If we take 438 away from 470, we end up with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Step 9:
73 can be fit into 320 4 times, resulting in a remainder of 28.
Write down 4 as next digit of the result. 
Result so far: 3952.164
If we take 292 away from 320, we end up with 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Step 10:
If we divide 280 by 73, we get 3 and a remainder of 61.
Write down 3 as next digit of the result. 
Result so far: 3952.1643
If we subtract 219 from 280, we get 61.
Since there are no more digits in the dividend, we add a zero to the remainder making it 610, and continue the process.

Step 11:
The number 73 fits into 610 8 times, leaving a remainder of 26.
Record the quotient 8 as the next digit in the result. 
Result so far: 3952.16438
The remainder is 26 after subtracting 584 from 610.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Let's proceed to step 12:
When dividing 260 by 73, we get 3 with a remainder of 41.
Use 3 as the next digit of our solution. 
Result so far: 3952.164383
The remainder is 41 after subtracting 219 from 260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 410, and continue the process.

Advancing to step 13:
73 goes into 410 5 times with a remainder of 45.
The number 5 becomes the next digit in our result. 
Result so far: 3952.1643835
If we subtract 365 from 410, we get 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

Advancing to step 14:
If we divide 450 by 73, we get 6 and a remainder of 12.
The number 6 becomes the next digit in our result. 
Result so far: 3952.16438356
If we subtract 438 from 450, we get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

After the division, we end up with 3952.16438356 and a remainder of 1.2e-08.