We divide 685712 by 42
The aim is to understand the frequency of 42 in 685712.

Advancing to step 1:
42 goes into 6 0 times with a remainder of 6.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Take the next digit (8) from the dividend and append it to 6, then repeat: 68 / 42

Step 2:
If we divide 68 by 42, we get 1 and a remainder of 26.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we subtract 42 from 68, we get 26.
Grab the next digit (5) from the dividend, add it to 26, then carry on: 265 / 42

Going ahead to step 3:
42 goes into 265 6 times with a remainder of 13.
The next digit of our result is 6. 
Result so far: 16.0
Deduct 252 from 265 and we're left with 13.
Append the next digit (7) from the dividend to 13 and continue with: 137 / 42

Advancing to step 4:
The number 42 fits into 137 3 times, leaving a remainder of 11.
The next digit of our result is 3. 
Result so far: 163.0
If we subtract 126 from 137, we get 11.
Grab the next digit (1) from the dividend, add it to 11, then carry on: 111 / 42

Let's proceed to step 5:
When dividing 111 by 42, we get 2 with a remainder of 27.
The next digit of our result is 2. 
Result so far: 1632.0
If we subtract 84 from 111, we get 27.
Fetch the next digit (2) from the dividend, attach it to 27 and continue: 272 / 42

Step 6:
42 goes into 272 6 times with a remainder of 20.
The number 6 becomes the next digit in our result. 
Result so far: 16326.0
Deduct 252 from 272 and we're left with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Step 7:
42 can be fit into 200 4 times, resulting in a remainder of 32.
Put 4 as the next digit of the answer. 
Result so far: 16326.4
Subtract 168 from 200 to get 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 8:
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: 16326.47
Deduct 294 from 320 and we're left with 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Moving on to step 9:
If we divide 260 by 42, we get 6 and a remainder of 8.
The number 6 becomes the next digit in our result. 
Result so far: 16326.476
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.

Let's proceed to step 10:
42 goes into 80 1 times with a remainder of 38.
Write down 1 as next digit of the result. 
Result so far: 16326.4761
The remainder is 38 after subtracting 42 from 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

On to step 11:
If we divide 380 by 42, we get 9 and a remainder of 2.
Put 9 as the next digit of the answer. 
Result so far: 16326.47619
Subtract 378 from 380 to get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Advancing to step 12:
42 goes into 20 0 times with a remainder of 20.
The number 0 becomes the next digit in our result. 
Result so far: 16326.47619
If we take 0 away from 20, we end up with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Let's proceed to step 13:
If we divide 200 by 42, we get 4 and a remainder of 32.
Use 4 as the next digit of our solution. 
Result so far: 16326.4761904
Subtract 168 from 200 to get 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Moving on 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: 16326.47619047
Subtracting 294 from 320 leaves us with 26.
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 result is 16326.47619047 with a remainder of 2.6e-08.