We look at the division of 303218 by 73 
The aim is to understand the frequency of 73 in 303218.

Step 1:
The number 73 fits into 3 0 times, leaving a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 3 after subtracting 0 from 3.
Append the next digit (0) from the dividend to 3 and continue with: 30 / 73

Going ahead to step 2:
If we divide 30 by 73, we get 0 and a remainder of 30.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 30 and we're left with 30.
Include the next digit (3) from the dividend after 30, then repeat: 303 / 73

Advancing to step 3:
If we divide 303 by 73, we get 4 and a remainder of 11.
The next digit of our result is 4. 
Result so far: 4.0
If we take 292 away from 303, we end up with 11.
Append the next digit (2) from the dividend to 11 and continue with: 112 / 73

Let's proceed to step 4:
The number 73 fits into 112 1 times, leaving a remainder of 39.
Record the quotient 1 as the next digit in the result. 
Result so far: 41.0
Deduct 73 from 112 and we're left with 39.
Append the next digit (1) from the dividend to 39 and continue with: 391 / 73

On to step 5:
73 can be fit into 391 5 times, resulting in a remainder of 26.
The number 5 becomes the next digit in our result. 
Result so far: 415.0
If we take 365 away from 391, we end up with 26.
Bring next digit (8) of the dividend behind the 26 and repeat the process: 268 / 73

Step 6:
The number 73 fits into 268 3 times, leaving a remainder of 49.
The number 3 becomes the next digit in our result. 
Result so far: 4153.0
The remainder is 49 after subtracting 219 from 268.
Since there are no more digits in the dividend, we add a zero to the remainder making it 490, and continue the process.

Going ahead to step 7:
The number 73 fits into 490 6 times, leaving a remainder of 52.
Record the quotient 6 as the next digit in the result. 
Result so far: 4153.6
Subtracting 438 from 490 leaves us with 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Moving on to step 8:
When dividing 520 by 73, we get 7 with a remainder of 9.
Put 7 as the next digit of the answer. 
Result so far: 4153.67
Deduct 511 from 520 and we're left with 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Moving on to step 9:
The number 73 fits into 90 1 times, leaving a remainder of 17.
Write down 1 as next digit of the result. 
Result so far: 4153.671
Subtract 73 from 90 to get 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Advancing to step 10:
The number 73 fits into 170 2 times, leaving a remainder of 24.
Record the quotient 2 as the next digit in the result. 
Result so far: 4153.6712
Deduct 146 from 170 and we're left with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Let's proceed to step 11:
73 can be fit into 240 3 times, resulting in a remainder of 21.
Write down 3 as next digit of the result. 
Result so far: 4153.67123
If we subtract 219 from 240, we get 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Advancing to step 12:
If we divide 210 by 73, we get 2 and a remainder of 64.
Write down 2 as next digit of the result. 
Result so far: 4153.671232
Subtract 146 from 210 to get 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

On to step 13:
73 can be fit into 640 8 times, resulting in a remainder of 56.
Write down 8 as next digit of the result. 
Result so far: 4153.6712328
If we subtract 584 from 640, we get 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Advancing to step 14:
560 divided by 73 is 7 with a remainder of 49.
Put 7 as the next digit of the answer. 
Result so far: 4153.67123287
Deduct 511 from 560 and we're left with 49.
Since there are no more digits in the dividend, we add a zero to the remainder making it 490, and continue the process.

In conclusion, the division gives 4153.67123287 with a balance of 4.9e-08.