We look at the division of 533735 by 42 
The aim is to understand the frequency of 42 in 533735.

On to step 1:
5 divided by 42 is 0 with a remainder of 5.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 5 to get 5.
Bring next digit (3) of the dividend behind the 5 and repeat the process: 53 / 42

Going ahead to step 2:
53 divided by 42 is 1 with a remainder of 11.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtracting 42 from 53 leaves us with 11.
Fetch the next digit (3) from the dividend, attach it to 11 and continue: 113 / 42

Going ahead to step 3:
When dividing 113 by 42, we get 2 with a remainder of 29.
Use 2 as the next digit of our solution. 
Result so far: 12.0
The remainder is 29 after subtracting 84 from 113.
Take the next digit (7) from the dividend and append it to 29, then repeat: 297 / 42

Let's proceed to step 4:
297 divided by 42 is 7 with a remainder of 3.
Use 7 as the next digit of our solution. 
Result so far: 127.0
Subtracting 294 from 297 leaves us with 3.
Grab the next digit (3) from the dividend, add it to 3, then carry on: 33 / 42

On to step 5:
The number 42 fits into 33 0 times, leaving a remainder of 33.
The number 0 becomes the next digit in our result. 
Result so far: 1270.0
If we take 0 away from 33, we end up with 33.
Fetch the next digit (5) from the dividend, attach it to 33 and continue: 335 / 42

On to step 6:
When dividing 335 by 42, we get 7 with a remainder of 41.
Record the quotient 7 as the next digit in the result. 
Result so far: 12707.0
Deduct 294 from 335 and we're left with 41.
Since there are no more digits in the dividend, we add a zero to the remainder making it 410, and continue the process.

Going ahead to step 7:
If we divide 410 by 42, we get 9 and a remainder of 32.
The number 9 becomes the next digit in our result. 
Result so far: 12707.9
Subtracting 378 from 410 leaves us with 32.
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:
The number 42 fits into 320 7 times, leaving a remainder of 26.
The next digit of our result is 7. 
Result so far: 12707.97
The remainder is 26 after subtracting 294 from 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Advancing to step 9:
If we divide 260 by 42, we get 6 and a remainder of 8.
Write down 6 as next digit of the result. 
Result so far: 12707.976
The remainder is 8 after subtracting 252 from 260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Going ahead to step 10:
80 divided by 42 is 1 with a remainder of 38.
The next digit of our result is 1. 
Result so far: 12707.9761
If we subtract 42 from 80, we get 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Advancing to step 11:
When dividing 380 by 42, we get 9 with a remainder of 2.
Write down 9 as next digit of the result. 
Result so far: 12707.97619
Deduct 378 from 380 and we're left with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Let's proceed to step 12:
When dividing 20 by 42, we get 0 with a remainder of 20.
Put 0 as the next digit of the answer. 
Result so far: 12707.97619
The remainder is 20 after subtracting 0 from 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Going ahead to step 13:
If we divide 200 by 42, we get 4 and a remainder of 32.
Record the quotient 4 as the next digit in the result. 
Result so far: 12707.9761904
Subtracting 168 from 200 leaves us with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Let's proceed to step 14:
If we divide 320 by 42, we get 7 and a remainder of 26.
Put 7 as the next digit of the answer. 
Result so far: 12707.97619047
The remainder is 26 after subtracting 294 from 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

The final outcome is 12707.97619047, with a leftover of 2.6e-08.