Let's divide 207990 by 42
The aim is to understand the frequency of 42 in 207990.

Going ahead to step 1:
When dividing 2 by 42, we get 0 with a remainder of 2.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 2 after subtracting 0 from 2.
Bring next digit (0) of the dividend behind the 2 and repeat the process: 20 / 42

Let's proceed to step 2:
If we divide 20 by 42, we get 0 and a remainder of 20.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 20 to get 20.
Bring next digit (7) of the dividend behind the 20 and repeat the process: 207 / 42

Step 3:
42 can be fit into 207 4 times, resulting in a remainder of 39.
The next digit of our result is 4. 
Result so far: 4.0
The remainder is 39 after subtracting 168 from 207.
Include the next digit (9) from the dividend after 39, then repeat: 399 / 42

Step 4:
The number 42 fits into 399 9 times, leaving a remainder of 21.
Use 9 as the next digit of our solution. 
Result so far: 49.0
If we subtract 378 from 399, we get 21.
Take the next digit (9) from the dividend and append it to 21, then repeat: 219 / 42

Step 5:
42 goes into 219 5 times with a remainder of 9.
Put 5 as the next digit of the answer. 
Result so far: 495.0
The remainder is 9 after subtracting 210 from 219.
Grab the next digit (0) from the dividend, add it to 9, then carry on: 90 / 42

Let's proceed to step 6:
When dividing 90 by 42, we get 2 with a remainder of 6.
Write down 2 as next digit of the result. 
Result so far: 4952.0
Subtract 84 from 90 to get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Advancing to step 7:
42 goes into 60 1 times with a remainder of 18.
Use 1 as the next digit of our solution. 
Result so far: 4952.1
If we subtract 42 from 60, we get 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Step 8:
When dividing 180 by 42, we get 4 with a remainder of 12.
Use 4 as the next digit of our solution. 
Result so far: 4952.14
The remainder is 12 after subtracting 168 from 180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Let's proceed to step 9:
If we divide 120 by 42, we get 2 and a remainder of 36.
The next digit of our result is 2. 
Result so far: 4952.142
If we take 84 away from 120, we end up with 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Moving on to step 10:
360 divided by 42 is 8 with a remainder of 24.
Write down 8 as next digit of the result. 
Result so far: 4952.1428
Subtract 336 from 360 to get 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Advancing to step 11:
42 goes into 240 5 times with a remainder of 30.
Put 5 as the next digit of the answer. 
Result so far: 4952.14285
If we take 210 away from 240, we end up with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Going ahead to step 12:
300 divided by 42 is 7 with a remainder of 6.
Put 7 as the next digit of the answer. 
Result so far: 4952.142857
Subtract 294 from 300 to get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

On to step 13:
When dividing 60 by 42, we get 1 with a remainder of 18.
Record the quotient 1 as the next digit in the result. 
Result so far: 4952.1428571
The remainder is 18 after subtracting 42 from 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Advancing to step 14:
180 divided by 42 is 4 with a remainder of 12.
Put 4 as the next digit of the answer. 
Result so far: 4952.14285714
If we subtract 168 from 180, we get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Our division results in 4952.14285714 with a remaining 1.2e-08.