We divide 664890 by 42
Let's see how many times 42 fits into 664890.

Going ahead to step 1:
When dividing 6 by 42, we get 0 with a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Take the next digit (6) from the dividend and append it to 6, then repeat: 66 / 42

Let's proceed to step 2:
If we divide 66 by 42, we get 1 and a remainder of 24.
The next digit of our result is 1. 
Result so far: 1.0
If we take 42 away from 66, we end up with 24.
Include the next digit (4) from the dividend after 24, then repeat: 244 / 42

Step 3:
244 divided by 42 is 5 with a remainder of 34.
Write down 5 as next digit of the result. 
Result so far: 15.0
Subtract 210 from 244 to get 34.
Bring next digit (8) of the dividend behind the 34 and repeat the process: 348 / 42

Going ahead to step 4:
42 goes into 348 8 times with a remainder of 12.
The number 8 becomes the next digit in our result. 
Result so far: 158.0
Deduct 336 from 348 and we're left with 12.
Append the next digit (9) from the dividend to 12 and continue with: 129 / 42

Moving on to step 5:
The number 42 fits into 129 3 times, leaving a remainder of 3.
The number 3 becomes the next digit in our result. 
Result so far: 1583.0
If we subtract 126 from 129, we get 3.
Append the next digit (0) from the dividend to 3 and continue with: 30 / 42

Moving on to step 6:
If we divide 30 by 42, we get 0 and a remainder of 30.
The next digit of our result is 0. 
Result so far: 15830.0
Subtract 0 from 30 to get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Let's proceed to step 7:
The number 42 fits into 300 7 times, leaving a remainder of 6.
Put 7 as the next digit of the answer. 
Result so far: 15830.7
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 8:
42 goes into 60 1 times with a remainder of 18.
Record the quotient 1 as the next digit in the result. 
Result so far: 15830.71
Subtract 42 from 60 to 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.

On to step 9:
When dividing 180 by 42, we get 4 with a remainder of 12.
Use 4 as the next digit of our solution. 
Result so far: 15830.714
Subtracting 168 from 180 leaves us 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.

Going ahead to step 10:
The number 42 fits into 120 2 times, leaving a remainder of 36.
The next digit of our result is 2. 
Result so far: 15830.7142
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.

Advancing to step 11:
If we divide 360 by 42, we get 8 and a remainder of 24.
The number 8 becomes the next digit in our result. 
Result so far: 15830.71428
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 12:
When dividing 240 by 42, we get 5 with a remainder of 30.
Record the quotient 5 as the next digit in the result. 
Result so far: 15830.714285
Deduct 210 from 240 and we're left 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.

Moving on to step 13:
The number 42 fits into 300 7 times, leaving a remainder of 6.
Write down 7 as next digit of the result. 
Result so far: 15830.7142857
Deduct 294 from 300 and we're left with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Moving on to step 14:
If we divide 60 by 42, we get 1 and a remainder of 18.
Use 1 as the next digit of our solution. 
Result so far: 15830.71428571
If we take 42 away from 60, we end up 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.

The quotient of the division is 15830.71428571, and the remainder is 1.8e-08.