Let's divide 727873 by 42
The aim is to understand the frequency of 42 in 727873.

Step 1:
42 goes into 7 0 times with a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 7, we get 7.
Include the next digit (2) from the dividend after 7, then repeat: 72 / 42

Going ahead to step 2:
The number 42 fits into 72 1 times, leaving a remainder of 30.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtracting 42 from 72 leaves us with 30.
Take the next digit (7) from the dividend and append it to 30, then repeat: 307 / 42

Moving on to step 3:
42 can be fit into 307 7 times, resulting in a remainder of 13.
Put 7 as the next digit of the answer. 
Result so far: 17.0
If we subtract 294 from 307, we get 13.
Append the next digit (8) from the dividend to 13 and continue with: 138 / 42

Step 4:
42 goes into 138 3 times with a remainder of 12.
The next digit of our result is 3. 
Result so far: 173.0
If we subtract 126 from 138, we get 12.
Append the next digit (7) from the dividend to 12 and continue with: 127 / 42

On to step 5:
42 goes into 127 3 times with a remainder of 1.
The number 3 becomes the next digit in our result. 
Result so far: 1733.0
Subtracting 126 from 127 leaves us with 1.
Include the next digit (3) from the dividend after 1, then repeat: 13 / 42

Advancing to step 6:
If we divide 13 by 42, we get 0 and a remainder of 13.
The number 0 becomes the next digit in our result. 
Result so far: 17330.0
Deduct 0 from 13 and we're left with 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Let's proceed to step 7:
130 divided by 42 is 3 with a remainder of 4.
Use 3 as the next digit of our solution. 
Result so far: 17330.3
Deduct 126 from 130 and we're left with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Let's proceed to step 8:
42 can be fit into 40 0 times, resulting in a remainder of 40.
The number 0 becomes the next digit in our result. 
Result so far: 17330.3
The remainder is 40 after subtracting 0 from 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:
When dividing 400 by 42, we get 9 with a remainder of 22.
The number 9 becomes the next digit in our result. 
Result so far: 17330.309
If we take 378 away from 400, we end up with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Advancing to step 10:
When dividing 220 by 42, we get 5 with a remainder of 10.
Record the quotient 5 as the next digit in the result. 
Result so far: 17330.3095
Subtracting 210 from 220 leaves us with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Going ahead to step 11:
100 divided by 42 is 2 with a remainder of 16.
Use 2 as the next digit of our solution. 
Result so far: 17330.30952
Subtracting 84 from 100 leaves us with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Step 12:
When dividing 160 by 42, we get 3 with a remainder of 34.
Use 3 as the next digit of our solution. 
Result so far: 17330.309523
If we subtract 126 from 160, we get 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Moving on to step 13:
The number 42 fits into 340 8 times, leaving a remainder of 4.
Write down 8 as next digit of the result. 
Result so far: 17330.3095238
Subtract 336 from 340 to 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.

Step 14:
40 divided by 42 is 0 with a remainder of 40.
The number 0 becomes the next digit in our result. 
Result so far: 17330.3095238
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.

After the division, we end up with 17330.3095238 and a remainder of 4e-08.