Let's divide 309203 by 73
The aim is to understand the frequency of 73 in 309203.

Going ahead to step 1:
3 divided by 73 is 0 with a remainder of 3.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 3, we end up with 3.
Grab the next digit (0) from the dividend, add it to 3, then carry on: 30 / 73

Going ahead to step 2:
73 can be fit into 30 0 times, resulting in a remainder of 30.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 30 and we're left with 30.
Bring next digit (9) of the dividend behind the 30 and repeat the process: 309 / 73

Advancing to step 3:
If we divide 309 by 73, we get 4 and a remainder of 17.
Use 4 as the next digit of our solution. 
Result so far: 4.0
Deduct 292 from 309 and we're left with 17.
Grab the next digit (2) from the dividend, add it to 17, then carry on: 172 / 73

Let's proceed to step 4:
73 goes into 172 2 times with a remainder of 26.
Write down 2 as next digit of the result. 
Result so far: 42.0
Deduct 146 from 172 and we're left with 26.
Fetch the next digit (0) from the dividend, attach it to 26 and continue: 260 / 73

On to step 5:
If we divide 260 by 73, we get 3 and a remainder of 41.
The next digit of our result is 3. 
Result so far: 423.0
Subtracting 219 from 260 leaves us with 41.
Append the next digit (3) from the dividend to 41 and continue with: 413 / 73

Going ahead to step 6:
When dividing 413 by 73, we get 5 with a remainder of 48.
The number 5 becomes the next digit in our result. 
Result so far: 4235.0
If we subtract 365 from 413, we 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.

Step 7:
73 goes into 480 6 times with a remainder of 42.
Use 6 as the next digit of our solution. 
Result so far: 4235.6
Deduct 438 from 480 and we're left with 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Moving on to step 8:
The number 73 fits into 420 5 times, leaving a remainder of 55.
Use 5 as the next digit of our solution. 
Result so far: 4235.65
The remainder is 55 after subtracting 365 from 420.
Since there are no more digits in the dividend, we add a zero to the remainder making it 550, and continue the process.

On to step 9:
When dividing 550 by 73, we get 7 with a remainder of 39.
Write down 7 as next digit of the result. 
Result so far: 4235.657
The remainder is 39 after subtracting 511 from 550.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

Moving on to step 10:
The number 73 fits into 390 5 times, leaving a remainder of 25.
Put 5 as the next digit of the answer. 
Result so far: 4235.6575
If we subtract 365 from 390, we get 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

On to step 11:
73 goes into 250 3 times with a remainder of 31.
The next digit of our result is 3. 
Result so far: 4235.65753
Subtract 219 from 250 to 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.

Advancing to step 12:
If we divide 310 by 73, we get 4 and a remainder of 18.
Put 4 as the next digit of the answer. 
Result so far: 4235.657534
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.

On to step 13:
73 goes into 180 2 times with a remainder of 34.
Write down 2 as next digit of the result. 
Result so far: 4235.6575342
Deduct 146 from 180 and we're left 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.

Going ahead to step 14:
When dividing 340 by 73, we get 4 with a remainder of 48.
The number 4 becomes the next digit in our result. 
Result so far: 4235.65753424
The remainder is 48 after subtracting 292 from 340.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

In conclusion, the division gives 4235.65753424 with a balance of 4.8e-08.