Let's divide 390494 by 42
We're looking to find how many times 42 goes into 390494.

On to step 1:
42 goes into 3 0 times with a remainder of 3.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 3 to get 3.
Include the next digit (9) from the dividend after 3, then repeat: 39 / 42

On to step 2:
The number 42 fits into 39 0 times, leaving a remainder of 39.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 39, we get 39.
Grab the next digit (0) from the dividend, add it to 39, then carry on: 390 / 42

Advancing to step 3:
The number 42 fits into 390 9 times, leaving a remainder of 12.
Write down 9 as next digit of the result. 
Result so far: 9.0
Deduct 378 from 390 and we're left with 12.
Grab the next digit (4) from the dividend, add it to 12, then carry on: 124 / 42

Advancing to step 4:
42 can be fit into 124 2 times, resulting in a remainder of 40.
Use 2 as the next digit of our solution. 
Result so far: 92.0
If we take 84 away from 124, we end up with 40.
Include the next digit (9) from the dividend after 40, then repeat: 409 / 42

Going ahead to step 5:
The number 42 fits into 409 9 times, leaving a remainder of 31.
Record the quotient 9 as the next digit in the result. 
Result so far: 929.0
The remainder is 31 after subtracting 378 from 409.
Grab the next digit (4) from the dividend, add it to 31, then carry on: 314 / 42

Step 6:
When dividing 314 by 42, we get 7 with a remainder of 20.
Use 7 as the next digit of our solution. 
Result so far: 9297.0
Subtracting 294 from 314 leaves us 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.

On to step 7:
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: 9297.4
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.

Advancing to step 8:
When dividing 320 by 42, we get 7 with a remainder of 26.
Use 7 as the next digit of our solution. 
Result so far: 9297.47
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.

Let's proceed to step 9:
When dividing 260 by 42, we get 6 with a remainder of 8.
Write down 6 as next digit of the result. 
Result so far: 9297.476
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:
When dividing 80 by 42, we get 1 with a remainder of 38.
Use 1 as the next digit of our solution. 
Result so far: 9297.4761
Deduct 42 from 80 and we're left with 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:
The number 42 fits into 380 9 times, leaving a remainder of 2.
Use 9 as the next digit of our solution. 
Result so far: 9297.47619
If we subtract 378 from 380, we 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.

Going ahead to step 12:
20 divided by 42 is 0 with a remainder of 20.
The number 0 becomes the next digit in our result. 
Result so far: 9297.47619
Subtract 0 from 20 to get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Moving on to step 13:
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: 9297.4761904
If we take 168 away from 200, we end up 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.

On to step 14:
The number 42 fits into 320 7 times, leaving a remainder of 26.
Put 7 as the next digit of the answer. 
Result so far: 9297.47619047
If we subtract 294 from 320, we get 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Our division results in 9297.47619047 with a remaining 2.6e-08.