640806 divided by 10 
We're looking to find how many times 10 goes into 640806.

Going ahead to step 1:
10 can be fit into 6 0 times, resulting in a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Bring next digit (4) of the dividend behind the 6 and repeat the process: 64 / 10

Step 2:
10 goes into 64 6 times with a remainder of 4.
Use 6 as the next digit of our solution. 
Result so far: 6.0
Deduct 60 from 64 and we're left with 4.
Include the next digit (0) from the dividend after 4, then repeat: 40 / 10

Let's proceed to step 3:
The number 10 fits into 40 4 times, leaving a remainder of 0.
Put 4 as the next digit of the answer. 
Result so far: 64.0
If we subtract 40 from 40, we get 0.
Append the next digit (8) from the dividend to 0 and continue with: 8 / 10

Going ahead to step 4:
The number 10 fits into 8 0 times, leaving a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 640.0
Subtracting 0 from 8 leaves us with 8.
Append the next digit (0) from the dividend to 8 and continue with: 80 / 10

Let's proceed to step 5:
When dividing 80 by 10, we get 8 with a remainder of 0.
The number 8 becomes the next digit in our result. 
Result so far: 6408.0
Subtracting 80 from 80 leaves us with 0.
Bring next digit (6) of the dividend behind the 0 and repeat the process: 6 / 10

Step 6:
When dividing 6 by 10, we get 0 with a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 64080.0
Subtract 0 from 6 to 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.

On to step 7:
If we divide 60 by 10, we get 6 and a remainder of 0.
Use 6 as the next digit of our solution. 
Result so far: 64080.6
The remainder is 0 after subtracting 60 from 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Going ahead to step 8:
0 divided by 10 is 0 with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 64080.6
Subtracting 0 from 0 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Going ahead to step 9:
10 can be fit into 0 0 times, resulting in a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 64080.6
If we subtract 0 from 0, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The final result is 64080.6 with a remainder of 0.0.