We're dividing 685930 by 42 
We want to figure out the number of times 685930 can be divided by 42.

Moving on to step 1:
When dividing 6 by 42, we get 0 with a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Bring next digit (8) of the dividend behind the 6 and repeat the process: 68 / 42

Moving on to step 2:
68 divided by 42 is 1 with a remainder of 26.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we subtract 42 from 68, we get 26.
Include the next digit (5) from the dividend after 26, then repeat: 265 / 42

Advancing 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 (9) from the dividend to 13 and continue with: 139 / 42

Advancing to step 4:
The number 42 fits into 139 3 times, leaving a remainder of 13.
Write down 3 as next digit of the result. 
Result so far: 163.0
Subtracting 126 from 139 leaves us with 13.
Fetch the next digit (3) from the dividend, attach it to 13 and continue: 133 / 42

Step 5:
The number 42 fits into 133 3 times, leaving a remainder of 7.
Record the quotient 3 as the next digit in the result. 
Result so far: 1633.0
If we take 126 away from 133, we end up with 7.
Append the next digit (0) from the dividend to 7 and continue with: 70 / 42

Moving on to step 6:
When dividing 70 by 42, we get 1 with a remainder of 28.
The number 1 becomes the next digit in our result. 
Result so far: 16331.0
Deduct 42 from 70 and we're left with 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Step 7:
280 divided by 42 is 6 with a remainder of 28.
The next digit of our result is 6. 
Result so far: 16331.6
Subtract 252 from 280 to get 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

On to step 8:
42 goes into 280 6 times with a remainder of 28.
Put 6 as the next digit of the answer. 
Result so far: 16331.66
Subtract 252 from 280 to get 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

After the division, we end up with 16331.66 and a remainder of 0.028.