We're dividing 208571 by 42 
The aim is to understand the frequency of 42 in 208571.

Moving on to step 1:
When dividing 2 by 42, we get 0 with a remainder of 2.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 2, we end up with 2.
Fetch the next digit (0) from the dividend, attach it to 2 and continue: 20 / 42

Step 2:
The number 42 fits into 20 0 times, leaving a remainder of 20.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 20, we get 20.
Bring next digit (8) of the dividend behind the 20 and repeat the process: 208 / 42

On to step 3:
The number 42 fits into 208 4 times, leaving a remainder of 40.
The next digit of our result is 4. 
Result so far: 4.0
Subtracting 168 from 208 leaves us with 40.
Bring next digit (5) of the dividend behind the 40 and repeat the process: 405 / 42

On to step 4:
42 goes into 405 9 times with a remainder of 27.
The number 9 becomes the next digit in our result. 
Result so far: 49.0
Subtract 378 from 405 to get 27.
Take the next digit (7) from the dividend and append it to 27, then repeat: 277 / 42

Moving on to step 5:
277 divided by 42 is 6 with a remainder of 25.
The next digit of our result is 6. 
Result so far: 496.0
The remainder is 25 after subtracting 252 from 277.
Take the next digit (1) from the dividend and append it to 25, then repeat: 251 / 42

Let's proceed to step 6:
42 goes into 251 5 times with a remainder of 41.
The number 5 becomes the next digit in our result. 
Result so far: 4965.0
The remainder is 41 after subtracting 210 from 251.
Since there are no more digits in the dividend, we add a zero to the remainder making it 410, and continue the process.

Moving on to step 7:
42 can be fit into 410 9 times, resulting in a remainder of 32.
Use 9 as the next digit of our solution. 
Result so far: 4965.9
The remainder is 32 after subtracting 378 from 410.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Going ahead to step 8:
When dividing 320 by 42, we get 7 with a remainder of 26.
The number 7 becomes the next digit in our result. 
Result so far: 4965.97
Deduct 294 from 320 and we're left with 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Moving on to step 9:
The number 42 fits into 260 6 times, leaving a remainder of 8.
Write down 6 as next digit of the result. 
Result so far: 4965.976
If we take 252 away from 260, we end up with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Let's proceed to step 10:
When dividing 80 by 42, we get 1 with a remainder of 38.
Write down 1 as next digit of the result. 
Result so far: 4965.9761
The remainder is 38 after subtracting 42 from 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Going ahead to step 11:
When dividing 380 by 42, we get 9 with a remainder of 2.
Put 9 as the next digit of the answer. 
Result so far: 4965.97619
If we subtract 378 from 380, we get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Moving on to step 12:
If we divide 20 by 42, we get 0 and a remainder of 20.
Record the quotient 0 as the next digit in the result. 
Result so far: 4965.97619
If we take 0 away from 20, we end up with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

On to step 13:
The number 42 fits into 200 4 times, leaving a remainder of 32.
The next digit of our result is 4. 
Result so far: 4965.9761904
The remainder is 32 after subtracting 168 from 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Step 14:
When dividing 320 by 42, we get 7 with a remainder of 26.
Write down 7 as next digit of the result. 
Result so far: 4965.97619047
Subtracting 294 from 320 leaves us with 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

In conclusion, the division gives 4965.97619047 with a balance of 2.6e-08.