We're dividing 42518445 by 871 
The aim is to understand the frequency of 871 in 42518445.

Let's proceed to step 1:
The number 871 fits into 4 0 times, leaving a remainder of 4.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 4 and we're left with 4.
Bring next digit (2) of the dividend behind the 4 and repeat the process: 42 / 871

Step 2:
42 divided by 871 is 0 with a remainder of 42.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 42, we get 42.
Bring next digit (5) of the dividend behind the 42 and repeat the process: 425 / 871

On to step 3:
When dividing 425 by 871, we get 0 with a remainder of 425.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 425, we get 425.
Fetch the next digit (1) from the dividend, attach it to 425 and continue: 4251 / 871

Advancing to step 4:
When dividing 4251 by 871, we get 4 with a remainder of 767.
Write down 4 as next digit of the result. 
Result so far: 4.0
If we take 3484 away from 4251, we end up with 767.
Include the next digit (8) from the dividend after 767, then repeat: 7678 / 871

Advancing to step 5:
871 goes into 7678 8 times with a remainder of 710.
Record the quotient 8 as the next digit in the result. 
Result so far: 48.0
Deduct 6968 from 7678 and we're left with 710.
Take the next digit (4) from the dividend and append it to 710, then repeat: 7104 / 871

Moving on to step 6:
If we divide 7104 by 871, we get 8 and a remainder of 136.
The number 8 becomes the next digit in our result. 
Result so far: 488.0
Subtract 6968 from 7104 to get 136.
Append the next digit (4) from the dividend to 136 and continue with: 1364 / 871

Moving on to step 7:
871 can be fit into 1364 1 times, resulting in a remainder of 493.
The number 1 becomes the next digit in our result. 
Result so far: 4881.0
If we take 871 away from 1364, we end up with 493.
Append the next digit (5) from the dividend to 493 and continue with: 4935 / 871

Let's proceed to step 8:
When dividing 4935 by 871, we get 5 with a remainder of 580.
The next digit of our result is 5. 
Result so far: 48815.0
The remainder is 580 after subtracting 4355 from 4935.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5800, and continue the process.

Advancing to step 9:
When dividing 5800 by 871, we get 6 with a remainder of 574.
Record the quotient 6 as the next digit in the result. 
Result so far: 48815.6
If we subtract 5226 from 5800, we get 574.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5740, and continue the process.

Step 10:
5740 divided by 871 is 6 with a remainder of 514.
Record the quotient 6 as the next digit in the result. 
Result so far: 48815.66
Deduct 5226 from 5740 and we're left with 514.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5140, and continue the process.

In conclusion, the division gives 48815.66 with a balance of 0.514.