We look at the division of 644004 by 13 
Let's see how many times 13 fits into 644004.

Let's proceed to step 1:
13 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
If we subtract 0 from 6, we get 6.
Append the next digit (4) from the dividend to 6 and continue with: 64 / 13

Let's proceed to step 2:
13 can be fit into 64 4 times, resulting in a remainder of 12.
The next digit of our result is 4. 
Result so far: 4.0
The remainder is 12 after subtracting 52 from 64.
Append the next digit (4) from the dividend to 12 and continue with: 124 / 13

On to step 3:
13 can be fit into 124 9 times, resulting in a remainder of 7.
Put 9 as the next digit of the answer. 
Result so far: 49.0
Subtracting 117 from 124 leaves us with 7.
Bring next digit (0) of the dividend behind the 7 and repeat the process: 70 / 13

Advancing to step 4:
When dividing 70 by 13, we get 5 with a remainder of 5.
The number 5 becomes the next digit in our result. 
Result so far: 495.0
Subtract 65 from 70 to get 5.
Include the next digit (0) from the dividend after 5, then repeat: 50 / 13

Advancing to step 5:
When dividing 50 by 13, we get 3 with a remainder of 11.
The number 3 becomes the next digit in our result. 
Result so far: 4953.0
If we take 39 away from 50, we end up with 11.
Append the next digit (4) from the dividend to 11 and continue with: 114 / 13

Going ahead to step 6:
13 can be fit into 114 8 times, resulting in a remainder of 10.
The number 8 becomes the next digit in our result. 
Result so far: 49538.0
Deduct 104 from 114 and we're left with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

On to step 7:
When dividing 100 by 13, we get 7 with a remainder of 9.
Write down 7 as next digit of the result. 
Result so far: 49538.7
Deduct 91 from 100 and we're left with 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Going ahead to step 8:
The number 13 fits into 90 6 times, leaving a remainder of 12.
The next digit of our result is 6. 
Result so far: 49538.76
Deduct 78 from 90 and we're left 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.

Step 9:
13 can be fit into 120 9 times, resulting in a remainder of 3.
Record the quotient 9 as the next digit in the result. 
Result so far: 49538.769
Subtracting 117 from 120 leaves us with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

On to step 10:
When dividing 30 by 13, we get 2 with a remainder of 4.
Use 2 as the next digit of our solution. 
Result so far: 49538.7692
Subtracting 26 from 30 leaves us with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Let's proceed to step 11:
13 goes into 40 3 times with a remainder of 1.
The next digit of our result is 3. 
Result so far: 49538.76923
Subtracting 39 from 40 leaves us with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Step 12:
10 divided by 13 is 0 with a remainder of 10.
The next digit of our result is 0. 
Result so far: 49538.76923
The remainder is 10 after subtracting 0 from 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Step 13:
If we divide 100 by 13, we get 7 and a remainder of 9.
Record the quotient 7 as the next digit in the result. 
Result so far: 49538.7692307
Subtract 91 from 100 to get 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Going ahead to step 14:
When dividing 90 by 13, we get 6 with a remainder of 12.
Use 6 as the next digit of our solution. 
Result so far: 49538.76923076
If we take 78 away from 90, we end up 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.

The quotient of the division is 49538.76923076, and the remainder is 1.2e-08.