731457 divided by 42 
The aim is to understand the frequency of 42 in 731457.

Let's proceed to step 1:
When dividing 7 by 42, we get 0 with a remainder of 7.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 7 leaves us with 7.
Bring next digit (3) of the dividend behind the 7 and repeat the process: 73 / 42

Advancing to step 2:
73 divided by 42 is 1 with a remainder of 31.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
If we take 42 away from 73, we end up with 31.
Bring next digit (1) of the dividend behind the 31 and repeat the process: 311 / 42

On to step 3:
If we divide 311 by 42, we get 7 and a remainder of 17.
Write down 7 as next digit of the result. 
Result so far: 17.0
Subtracting 294 from 311 leaves us with 17.
Grab the next digit (4) from the dividend, add it to 17, then carry on: 174 / 42

Step 4:
When dividing 174 by 42, we get 4 with a remainder of 6.
Use 4 as the next digit of our solution. 
Result so far: 174.0
The remainder is 6 after subtracting 168 from 174.
Bring next digit (5) of the dividend behind the 6 and repeat the process: 65 / 42

Going ahead to step 5:
42 can be fit into 65 1 times, resulting in a remainder of 23.
The next digit of our result is 1. 
Result so far: 1741.0
The remainder is 23 after subtracting 42 from 65.
Bring next digit (7) of the dividend behind the 23 and repeat the process: 237 / 42

Step 6:
237 divided by 42 is 5 with a remainder of 27.
Record the quotient 5 as the next digit in the result. 
Result so far: 17415.0
If we take 210 away from 237, we end up with 27.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

Going ahead to step 7:
42 can be fit into 270 6 times, resulting in a remainder of 18.
Write down 6 as next digit of the result. 
Result so far: 17415.6
If we subtract 252 from 270, 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.

Going ahead to step 8:
If we divide 180 by 42, we get 4 and a remainder of 12.
Record the quotient 4 as the next digit in the result. 
Result so far: 17415.64
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.

Moving on to step 9:
The number 42 fits into 120 2 times, leaving a remainder of 36.
The number 2 becomes the next digit in our result. 
Result so far: 17415.642
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.

Step 10:
If we divide 360 by 42, we get 8 and a remainder of 24.
Put 8 as the next digit of the answer. 
Result so far: 17415.6428
The remainder is 24 after subtracting 336 from 360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

On to step 11:
When dividing 240 by 42, we get 5 with a remainder of 30.
Put 5 as the next digit of the answer. 
Result so far: 17415.64285
Subtracting 210 from 240 leaves us 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.

On to step 12:
42 goes into 300 7 times with a remainder of 6.
Record the quotient 7 as the next digit in the result. 
Result so far: 17415.642857
If we subtract 294 from 300, we 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 13:
If we divide 60 by 42, we get 1 and a remainder of 18.
Write down 1 as next digit of the result. 
Result so far: 17415.6428571
Subtracting 42 from 60 leaves us 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 14:
180 divided by 42 is 4 with a remainder of 12.
Use 4 as the next digit of our solution. 
Result so far: 17415.64285714
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.

After the division, we end up with 17415.64285714 and a remainder of 1.2e-08.