We look at the division of 659691 by 42 
The aim is to understand the frequency of 42 in 659691.

Moving on to step 1:
6 divided by 42 is 0 with a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Bring next digit (5) of the dividend behind the 6 and repeat the process: 65 / 42

On to step 2:
65 divided by 42 is 1 with a remainder of 23.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtract 42 from 65 to get 23.
Take the next digit (9) from the dividend and append it to 23, then repeat: 239 / 42

Step 3:
The number 42 fits into 239 5 times, leaving a remainder of 29.
Write down 5 as next digit of the result. 
Result so far: 15.0
Subtract 210 from 239 to get 29.
Fetch the next digit (6) from the dividend, attach it to 29 and continue: 296 / 42

Moving on to step 4:
296 divided by 42 is 7 with a remainder of 2.
Record the quotient 7 as the next digit in the result. 
Result so far: 157.0
If we take 294 away from 296, we end up with 2.
Include the next digit (9) from the dividend after 2, then repeat: 29 / 42

On to step 5:
42 goes into 29 0 times with a remainder of 29.
Put 0 as the next digit of the answer. 
Result so far: 1570.0
Subtract 0 from 29 to get 29.
Take the next digit (1) from the dividend and append it to 29, then repeat: 291 / 42

Step 6:
42 can be fit into 291 6 times, resulting in a remainder of 39.
Put 6 as the next digit of the answer. 
Result so far: 15706.0
The remainder is 39 after subtracting 252 from 291.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

Advancing to step 7:
42 can be fit into 390 9 times, resulting in a remainder of 12.
The next digit of our result is 9. 
Result so far: 15706.9
Subtract 378 from 390 to 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.

Advancing to step 8:
42 goes into 120 2 times with a remainder of 36.
Record the quotient 2 as the next digit in the result. 
Result so far: 15706.92
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.

Going ahead to step 9:
When dividing 360 by 42, we get 8 with a remainder of 24.
Record the quotient 8 as the next digit in the result. 
Result so far: 15706.928
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.

Going ahead to step 10:
When dividing 240 by 42, we get 5 with a remainder of 30.
The next digit of our result is 5. 
Result so far: 15706.9285
The remainder is 30 after subtracting 210 from 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Step 11:
When dividing 300 by 42, we get 7 with a remainder of 6.
Record the quotient 7 as the next digit in the result. 
Result so far: 15706.92857
The remainder is 6 after subtracting 294 from 300.
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 12:
42 can be fit into 60 1 times, resulting in a remainder of 18.
The next digit of our result is 1. 
Result so far: 15706.928571
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.

Advancing to step 13:
180 divided by 42 is 4 with a remainder of 12.
Write down 4 as next digit of the result. 
Result so far: 15706.9285714
Subtract 168 from 180 to 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.

Advancing to step 14:
42 can be fit into 120 2 times, resulting in a remainder of 36.
Record the quotient 2 as the next digit in the result. 
Result so far: 15706.92857142
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.

In conclusion, the division gives 15706.92857142 with a balance of 3.6e-08.