452104 ÷ 42 
The aim is to understand the frequency of 42 in 452104.

On to step 1:
42 can be fit into 4 0 times, resulting in a remainder of 4.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 4 leaves us with 4.
Fetch the next digit (5) from the dividend, attach it to 4 and continue: 45 / 42

Moving on to step 2:
When dividing 45 by 42, we get 1 with a remainder of 3.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtract 42 from 45 to get 3.
Include the next digit (2) from the dividend after 3, then repeat: 32 / 42

Advancing to step 3:
If we divide 32 by 42, we get 0 and a remainder of 32.
Write down 0 as next digit of the result. 
Result so far: 10.0
The remainder is 32 after subtracting 0 from 32.
Grab the next digit (1) from the dividend, add it to 32, then carry on: 321 / 42

Moving on to step 4:
321 divided by 42 is 7 with a remainder of 27.
Use 7 as the next digit of our solution. 
Result so far: 107.0
Deduct 294 from 321 and we're left with 27.
Append the next digit (0) from the dividend to 27 and continue with: 270 / 42

Let's proceed to step 5:
42 can be fit into 270 6 times, resulting in a remainder of 18.
Put 6 as the next digit of the answer. 
Result so far: 1076.0
The remainder is 18 after subtracting 252 from 270.
Grab the next digit (4) from the dividend, add it to 18, then carry on: 184 / 42

Step 6:
42 goes into 184 4 times with a remainder of 16.
Use 4 as the next digit of our solution. 
Result so far: 10764.0
If we take 168 away from 184, we end up 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.

Let's proceed to step 7:
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: 10764.3
If we take 126 away from 160, we end up 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.

Moving on to step 8:
42 goes into 340 8 times with a remainder of 4.
The next digit of our result is 8. 
Result so far: 10764.38
Subtracting 336 from 340 leaves us 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.

Moving on to step 9:
When dividing 40 by 42, we get 0 with a remainder of 40.
Record the quotient 0 as the next digit in the result. 
Result so far: 10764.38
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 10:
400 divided by 42 is 9 with a remainder of 22.
The number 9 becomes the next digit in our result. 
Result so far: 10764.3809
Subtracting 378 from 400 leaves us 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.

On to step 11:
220 divided by 42 is 5 with a remainder of 10.
The next digit of our result is 5. 
Result so far: 10764.38095
Deduct 210 from 220 and we're left 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.

On to step 12:
42 can be fit into 100 2 times, resulting in a remainder of 16.
Record the quotient 2 as the next digit in the result. 
Result so far: 10764.380952
If we subtract 84 from 100, we get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Let's proceed to step 13:
When dividing 160 by 42, we get 3 with a remainder of 34.
Write down 3 as next digit of the result. 
Result so far: 10764.3809523
Deduct 126 from 160 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.

Moving on to step 14:
The number 42 fits into 340 8 times, leaving a remainder of 4.
The number 8 becomes the next digit in our result. 
Result so far: 10764.38095238
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.

Our division results in 10764.38095238 with a remaining 4e-09.