353919 ÷ 73 
The aim is to understand the frequency of 73 in 353919.

Going ahead to step 1:
When dividing 3 by 73, we get 0 with a remainder of 3.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 3 after subtracting 0 from 3.
Take the next digit (5) from the dividend and append it to 3, then repeat: 35 / 73

On to step 2:
When dividing 35 by 73, we get 0 with a remainder of 35.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 35, we end up with 35.
Include the next digit (3) from the dividend after 35, then repeat: 353 / 73

On to step 3:
The number 73 fits into 353 4 times, leaving a remainder of 61.
Use 4 as the next digit of our solution. 
Result so far: 4.0
Subtract 292 from 353 to get 61.
Include the next digit (9) from the dividend after 61, then repeat: 619 / 73

Advancing to step 4:
619 divided by 73 is 8 with a remainder of 35.
The next digit of our result is 8. 
Result so far: 48.0
If we take 584 away from 619, we end up with 35.
Append the next digit (1) from the dividend to 35 and continue with: 351 / 73

Let's proceed to step 5:
When dividing 351 by 73, we get 4 with a remainder of 59.
Record the quotient 4 as the next digit in the result. 
Result so far: 484.0
Subtract 292 from 351 to get 59.
Take the next digit (9) from the dividend and append it to 59, then repeat: 599 / 73

Let's proceed to step 6:
73 can be fit into 599 8 times, resulting in a remainder of 15.
Put 8 as the next digit of the answer. 
Result so far: 4848.0
Subtracting 584 from 599 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.

Let's proceed to step 7:
The number 73 fits into 150 2 times, leaving a remainder of 4.
Use 2 as the next digit of our solution. 
Result so far: 4848.2
The remainder is 4 after subtracting 146 from 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Moving on to step 8:
The number 73 fits into 40 0 times, leaving a remainder of 40.
The number 0 becomes the next digit in our result. 
Result so far: 4848.2
Deduct 0 from 40 and we're left with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

On to step 9:
400 divided by 73 is 5 with a remainder of 35.
The next digit of our result is 5. 
Result so far: 4848.205
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.

Step 10:
When dividing 350 by 73, we get 4 with a remainder of 58.
Put 4 as the next digit of the answer. 
Result so far: 4848.2054
If we subtract 292 from 350, we get 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

Step 11:
If we divide 580 by 73, we get 7 and a remainder of 69.
Put 7 as the next digit of the answer. 
Result so far: 4848.20547
The remainder is 69 after subtracting 511 from 580.
Since there are no more digits in the dividend, we add a zero to the remainder making it 690, and continue the process.

Advancing to step 12:
73 can be fit into 690 9 times, resulting in a remainder of 33.
Use 9 as the next digit of our solution. 
Result so far: 4848.205479
The remainder is 33 after subtracting 657 from 690.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

Let's proceed to step 13:
73 can be fit into 330 4 times, resulting in a remainder of 38.
The next digit of our result is 4. 
Result so far: 4848.2054794
Deduct 292 from 330 and we're left 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.

Let's proceed to step 14:
73 can be fit into 380 5 times, resulting in a remainder of 15.
Put 5 as the next digit of the answer. 
Result so far: 4848.20547945
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.

After the division, we end up with 4848.20547945 and a remainder of 1.5e-08.