We're dividing 359937 by 42 
The aim is to understand the frequency of 42 in 359937.

Moving on to step 1:
If we divide 3 by 42, we get 0 and a remainder of 3.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 3, we get 3.
Bring next digit (5) of the dividend behind the 3 and repeat the process: 35 / 42

Advancing to step 2:
42 can be fit into 35 0 times, resulting in a remainder of 35.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 35 leaves us with 35.
Bring next digit (9) of the dividend behind the 35 and repeat the process: 359 / 42

Let's proceed to step 3:
359 divided by 42 is 8 with a remainder of 23.
Write down 8 as next digit of the result. 
Result so far: 8.0
If we subtract 336 from 359, we get 23.
Bring next digit (9) of the dividend behind the 23 and repeat the process: 239 / 42

Step 4:
239 divided by 42 is 5 with a remainder of 29.
Put 5 as the next digit of the answer. 
Result so far: 85.0
Deduct 210 from 239 and we're left with 29.
Include the next digit (3) from the dividend after 29, then repeat: 293 / 42

Advancing to step 5:
42 goes into 293 6 times with a remainder of 41.
Put 6 as the next digit of the answer. 
Result so far: 856.0
If we take 252 away from 293, we end up with 41.
Append the next digit (7) from the dividend to 41 and continue with: 417 / 42

Advancing to step 6:
42 goes into 417 9 times with a remainder of 39.
Use 9 as the next digit of our solution. 
Result so far: 8569.0
If we take 378 away from 417, we end up with 39.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

On to step 7:
390 divided by 42 is 9 with a remainder of 12.
The next digit of our result is 9. 
Result so far: 8569.9
Subtracting 378 from 390 leaves us with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

On to step 8:
42 goes into 120 2 times with a remainder of 36.
Write down 2 as next digit of the result. 
Result so far: 8569.92
Deduct 84 from 120 and we're left 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.

Let's proceed to step 9:
The number 42 fits into 360 8 times, leaving a remainder of 24.
The number 8 becomes the next digit in our result. 
Result so far: 8569.928
If we take 336 away from 360, we end up with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Step 10:
The number 42 fits into 240 5 times, leaving a remainder of 30.
Write down 5 as next digit of the result. 
Result so far: 8569.9285
Deduct 210 from 240 and we're left 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.

Moving on to step 11:
42 goes into 300 7 times with a remainder of 6.
The number 7 becomes the next digit in our result. 
Result so far: 8569.92857
If we take 294 away from 300, we end up with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Let's proceed to step 12:
42 can be fit into 60 1 times, resulting in a remainder of 18.
Use 1 as the next digit of our solution. 
Result so far: 8569.928571
Deduct 42 from 60 and we're left with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Let's proceed to step 13:
42 can be fit into 180 4 times, resulting in a remainder of 12.
Write down 4 as next digit of the result. 
Result so far: 8569.9285714
Deduct 168 from 180 and we're left with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

On to step 14:
42 goes into 120 2 times with a remainder of 36.
Put 2 as the next digit of the answer. 
Result so far: 8569.92857142
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.

After the division, we end up with 8569.92857142 and a remainder of 3.6e-08.