42840908 ÷ 449 
The aim is to understand the frequency of 449 in 42840908.

Step 1:
When dividing 4 by 449, we get 0 with a remainder of 4.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 4 after subtracting 0 from 4.
Bring next digit (2) of the dividend behind the 4 and repeat the process: 42 / 449

Step 2:
If we divide 42 by 449, we get 0 and a remainder of 42.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 42 leaves us with 42.
Take the next digit (8) from the dividend and append it to 42, then repeat: 428 / 449

Step 3:
449 goes into 428 0 times with a remainder of 428.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 428, we end up with 428.
Take the next digit (4) from the dividend and append it to 428, then repeat: 4284 / 449

Let's proceed to step 4:
The number 449 fits into 4284 9 times, leaving a remainder of 243.
Write down 9 as next digit of the result. 
Result so far: 9.0
If we take 4041 away from 4284, we end up with 243.
Append the next digit (0) from the dividend to 243 and continue with: 2430 / 449

Let's proceed to step 5:
449 can be fit into 2430 5 times, resulting in a remainder of 185.
Use 5 as the next digit of our solution. 
Result so far: 95.0
Deduct 2245 from 2430 and we're left with 185.
Include the next digit (9) from the dividend after 185, then repeat: 1859 / 449

Step 6:
449 goes into 1859 4 times with a remainder of 63.
Record the quotient 4 as the next digit in the result. 
Result so far: 954.0
If we take 1796 away from 1859, we end up with 63.
Fetch the next digit (0) from the dividend, attach it to 63 and continue: 630 / 449

On to step 7:
If we divide 630 by 449, we get 1 and a remainder of 181.
Record the quotient 1 as the next digit in the result. 
Result so far: 9541.0
Subtracting 449 from 630 leaves us with 181.
Take the next digit (8) from the dividend and append it to 181, then repeat: 1818 / 449

Let's proceed to step 8:
If we divide 1818 by 449, we get 4 and a remainder of 22.
Record the quotient 4 as the next digit in the result. 
Result so far: 95414.0
Subtracting 1796 from 1818 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.

Moving on to step 9:
The number 449 fits into 220 0 times, leaving a remainder of 220.
Record the quotient 0 as the next digit in the result. 
Result so far: 95414.0
The remainder is 220 after subtracting 0 from 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2200, and continue the process.

Advancing to step 10:
If we divide 2200 by 449, we get 4 and a remainder of 404.
The next digit of our result is 4. 
Result so far: 95414.04
Deduct 1796 from 2200 and we're left with 404.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4040, and continue the process.

Let's proceed to step 11:
When dividing 4040 by 449, we get 8 with a remainder of 448.
Write down 8 as next digit of the result. 
Result so far: 95414.048
If we subtract 3592 from 4040, we get 448.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4480, and continue the process.

Advancing to step 12:
4480 divided by 449 is 9 with a remainder of 439.
Write down 9 as next digit of the result. 
Result so far: 95414.0489
If we take 4041 away from 4480, we end up with 439.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4390, and continue the process.

Let's proceed to step 13:
449 goes into 4390 9 times with a remainder of 349.
Use 9 as the next digit of our solution. 
Result so far: 95414.04899
The remainder is 349 after subtracting 4041 from 4390.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3490, and continue the process.

The final outcome is 95414.04899, with a leftover of 0.000349.