644802 divided by 10 
We're looking to find how many times 10 goes into 644802.

Moving on to step 1:
6 divided by 10 is 0 with a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 6, we get 6.
Append the next digit (4) from the dividend to 6 and continue with: 64 / 10

Moving on to step 2:
10 goes into 64 6 times with a remainder of 4.
Put 6 as the next digit of the answer. 
Result so far: 6.0
Subtract 60 from 64 to get 4.
Include the next digit (4) from the dividend after 4, then repeat: 44 / 10

Advancing to step 3:
10 can be fit into 44 4 times, resulting in a remainder of 4.
The next digit of our result is 4. 
Result so far: 64.0
Deduct 40 from 44 and we're left with 4.
Grab the next digit (8) from the dividend, add it to 4, then carry on: 48 / 10

Advancing to step 4:
The number 10 fits into 48 4 times, leaving a remainder of 8.
The next digit of our result is 4. 
Result so far: 644.0
Subtract 40 from 48 to get 8.
Append the next digit (0) from the dividend to 8 and continue with: 80 / 10

On to step 5:
If we divide 80 by 10, we get 8 and a remainder of 0.
Record the quotient 8 as the next digit in the result. 
Result so far: 6448.0
Deduct 80 from 80 and we're left with 0.
Take the next digit (2) from the dividend and append it to 0, then repeat: 2 / 10

Advancing to step 6:
The number 10 fits into 2 0 times, leaving a remainder of 2.
The number 0 becomes the next digit in our result. 
Result so far: 64480.0
If we take 0 away from 2, we end up with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

On to step 7:
10 can be fit into 20 2 times, resulting in a remainder of 0.
Use 2 as the next digit of our solution. 
Result so far: 64480.2
Subtracting 20 from 20 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.

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: 64480.2
The remainder is 0 after subtracting 0 from 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: 64480.2
Deduct 0 from 0 and we're left 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.

Our division results in 64480.2 with a remaining 0.0.