We're dividing 708991 by 73 
The aim is to understand the frequency of 73 in 708991.

Going ahead to step 1:
If we divide 7 by 73, we get 0 and a remainder of 7.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 7 leaves us with 7.
Bring next digit (0) of the dividend behind the 7 and repeat the process: 70 / 73

On to step 2:
73 can be fit into 70 0 times, resulting in a remainder of 70.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 70 to get 70.
Take the next digit (8) from the dividend and append it to 70, then repeat: 708 / 73

On to step 3:
The number 73 fits into 708 9 times, leaving a remainder of 51.
Write down 9 as next digit of the result. 
Result so far: 9.0
Deduct 657 from 708 and we're left with 51.
Take the next digit (9) from the dividend and append it to 51, then repeat: 519 / 73

Step 4:
If we divide 519 by 73, we get 7 and a remainder of 8.
Put 7 as the next digit of the answer. 
Result so far: 97.0
Subtract 511 from 519 to get 8.
Fetch the next digit (9) from the dividend, attach it to 8 and continue: 89 / 73

Going ahead to step 5:
If we divide 89 by 73, we get 1 and a remainder of 16.
Write down 1 as next digit of the result. 
Result so far: 971.0
Subtract 73 from 89 to get 16.
Fetch the next digit (1) from the dividend, attach it to 16 and continue: 161 / 73

Let's proceed to step 6:
When dividing 161 by 73, we get 2 with a remainder of 15.
The number 2 becomes the next digit in our result. 
Result so far: 9712.0
Deduct 146 from 161 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 7:
150 divided by 73 is 2 with a remainder of 4.
Record the quotient 2 as the next digit in the result. 
Result so far: 9712.2
If we subtract 146 from 150, we get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Advancing to step 8:
When dividing 40 by 73, we get 0 with a remainder of 40.
The number 0 becomes the next digit in our result. 
Result so far: 9712.2
If we subtract 0 from 40, we 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 9:
The number 73 fits into 400 5 times, leaving a remainder of 35.
Use 5 as the next digit of our solution. 
Result so far: 9712.205
Deduct 365 from 400 and we're left with 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Going ahead to step 10:
If we divide 350 by 73, we get 4 and a remainder of 58.
The next digit of our result is 4. 
Result so far: 9712.2054
The remainder is 58 after subtracting 292 from 350.
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 11:
580 divided by 73 is 7 with a remainder of 69.
The next digit of our result is 7. 
Result so far: 9712.20547
Subtract 511 from 580 to get 69.
Since there are no more digits in the dividend, we add a zero to the remainder making it 690, and continue the process.

Going ahead to step 12:
690 divided by 73 is 9 with a remainder of 33.
The next digit of our result is 9. 
Result so far: 9712.205479
Subtracting 657 from 690 leaves us with 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 13:
73 goes into 330 4 times with a remainder of 38.
Record the quotient 4 as the next digit in the result. 
Result so far: 9712.2054794
Subtracting 292 from 330 leaves us with 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Moving on to step 14:
If we divide 380 by 73, we get 5 and a remainder of 15.
The number 5 becomes the next digit in our result. 
Result so far: 9712.20547945
Subtracting 365 from 380 leaves us 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.

The final result is 9712.20547945 with a remainder of 1.5e-08.