We divide 640010 by 15
Our goal is to divide 640010 by 15.

Let's proceed to step 1:
15 goes into 6 0 times with a remainder of 6.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 6, we get 6.
Grab the next digit (4) from the dividend, add it to 6, then carry on: 64 / 15

Step 2:
If we divide 64 by 15, we get 4 and a remainder of 4.
The next digit of our result is 4. 
Result so far: 4.0
Subtract 60 from 64 to get 4.
Bring next digit (0) of the dividend behind the 4 and repeat the process: 40 / 15

Step 3:
If we divide 40 by 15, we get 2 and a remainder of 10.
The number 2 becomes the next digit in our result. 
Result so far: 42.0
Subtracting 30 from 40 leaves us with 10.
Append the next digit (0) from the dividend to 10 and continue with: 100 / 15

Step 4:
15 goes into 100 6 times with a remainder of 10.
Use 6 as the next digit of our solution. 
Result so far: 426.0
Subtract 90 from 100 to get 10.
Bring next digit (1) of the dividend behind the 10 and repeat the process: 101 / 15

Let's proceed to step 5:
When dividing 101 by 15, we get 6 with a remainder of 11.
Use 6 as the next digit of our solution. 
Result so far: 4266.0
The remainder is 11 after subtracting 90 from 101.
Bring next digit (0) of the dividend behind the 11 and repeat the process: 110 / 15

Step 6:
If we divide 110 by 15, we get 7 and a remainder of 5.
Write down 7 as next digit of the result. 
Result so far: 42667.0
If we take 105 away from 110, we end up with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Let's proceed to step 7:
15 can be fit into 50 3 times, resulting in a remainder of 5.
Put 3 as the next digit of the answer. 
Result so far: 42667.3
If we subtract 45 from 50, we get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

On to step 8:
15 can be fit into 50 3 times, resulting in a remainder of 5.
Record the quotient 3 as the next digit in the result. 
Result so far: 42667.33
Subtract 45 from 50 to get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

After the division, we end up with 42667.33 and a remainder of 0.005.