We look at the division of 945530 by 73 
The aim is to understand the frequency of 73 in 945530.

Step 1:
73 can be fit into 9 0 times, resulting in a remainder of 9.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 9, we end up with 9.
Grab the next digit (4) from the dividend, add it to 9, then carry on: 94 / 73

Moving on to step 2:
When dividing 94 by 73, we get 1 with a remainder of 21.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we take 73 away from 94, we end up with 21.
Take the next digit (5) from the dividend and append it to 21, then repeat: 215 / 73

Moving on to step 3:
73 can be fit into 215 2 times, resulting in a remainder of 69.
Write down 2 as next digit of the result. 
Result so far: 12.0
Deduct 146 from 215 and we're left with 69.
Include the next digit (5) from the dividend after 69, then repeat: 695 / 73

Going ahead to step 4:
695 divided by 73 is 9 with a remainder of 38.
Record the quotient 9 as the next digit in the result. 
Result so far: 129.0
Subtract 657 from 695 to get 38.
Append the next digit (3) from the dividend to 38 and continue with: 383 / 73

Step 5:
When dividing 383 by 73, we get 5 with a remainder of 18.
Use 5 as the next digit of our solution. 
Result so far: 1295.0
Subtracting 365 from 383 leaves us with 18.
Fetch the next digit (0) from the dividend, attach it to 18 and continue: 180 / 73

Advancing to step 6:
When dividing 180 by 73, we get 2 with a remainder of 34.
The number 2 becomes the next digit in our result. 
Result so far: 12952.0
Subtracting 146 from 180 leaves us 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.

Step 7:
340 divided by 73 is 4 with a remainder of 48.
Put 4 as the next digit of the answer. 
Result so far: 12952.4
Subtract 292 from 340 to 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.

Let's proceed to step 8:
73 goes into 480 6 times with a remainder of 42.
The next digit of our result is 6. 
Result so far: 12952.46
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.

Let's proceed to step 9:
73 goes into 420 5 times with a remainder of 55.
The next digit of our result is 5. 
Result so far: 12952.465
Deduct 365 from 420 and we're left with 55.
Since there are no more digits in the dividend, we add a zero to the remainder making it 550, and continue the process.

Let's proceed to step 10:
When dividing 550 by 73, we get 7 with a remainder of 39.
The next digit of our result is 7. 
Result so far: 12952.4657
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.

Going ahead to step 11:
73 can be fit into 390 5 times, resulting in a remainder of 25.
The number 5 becomes the next digit in our result. 
Result so far: 12952.46575
If we take 365 away from 390, we end up 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.

Moving on to step 12:
If we divide 250 by 73, we get 3 and a remainder of 31.
Record the quotient 3 as the next digit in the result. 
Result so far: 12952.465753
If we subtract 219 from 250, we 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.

Let's proceed to step 13:
The number 73 fits into 310 4 times, leaving a remainder of 18.
Write down 4 as next digit of the result. 
Result so far: 12952.4657534
Subtract 292 from 310 to 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.

Going ahead to step 14:
When dividing 180 by 73, we get 2 with a remainder of 34.
Put 2 as the next digit of the answer. 
Result so far: 12952.46575342
The remainder is 34 after subtracting 146 from 180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

The final result is 12952.46575342 with a remainder of 3.4e-08.