We look at the division of 640365 by 13 
Let's see how many times 13 fits into 640365.

On to step 1:
If we divide 6 by 13, we get 0 and a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 6, we get 6.
Take the next digit (4) from the dividend and append it to 6, then repeat: 64 / 13

Advancing to step 2:
The number 13 fits into 64 4 times, leaving a remainder of 12.
Write down 4 as next digit of the result. 
Result so far: 4.0
If we subtract 52 from 64, we get 12.
Grab the next digit (0) from the dividend, add it to 12, then carry on: 120 / 13

Going ahead to step 3:
120 divided by 13 is 9 with a remainder of 3.
The number 9 becomes the next digit in our result. 
Result so far: 49.0
If we subtract 117 from 120, we get 3.
Bring next digit (3) of the dividend behind the 3 and repeat the process: 33 / 13

Let's proceed to step 4:
When dividing 33 by 13, we get 2 with a remainder of 7.
Record the quotient 2 as the next digit in the result. 
Result so far: 492.0
Subtract 26 from 33 to get 7.
Take the next digit (6) from the dividend and append it to 7, then repeat: 76 / 13

Step 5:
13 goes into 76 5 times with a remainder of 11.
Write down 5 as next digit of the result. 
Result so far: 4925.0
Subtracting 65 from 76 leaves us with 11.
Grab the next digit (5) from the dividend, add it to 11, then carry on: 115 / 13

Going ahead to step 6:
If we divide 115 by 13, we get 8 and a remainder of 11.
Put 8 as the next digit of the answer. 
Result so far: 49258.0
Subtract 104 from 115 to get 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Let's proceed to step 7:
13 can be fit into 110 8 times, resulting in a remainder of 6.
Use 8 as the next digit of our solution. 
Result so far: 49258.8
Subtracting 104 from 110 leaves us 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 8:
60 divided by 13 is 4 with a remainder of 8.
Use 4 as the next digit of our solution. 
Result so far: 49258.84
The remainder is 8 after subtracting 52 from 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Let's proceed to step 9:
The number 13 fits into 80 6 times, leaving a remainder of 2.
The number 6 becomes the next digit in our result. 
Result so far: 49258.846
If we take 78 away from 80, 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 10:
20 divided by 13 is 1 with a remainder of 7.
Use 1 as the next digit of our solution. 
Result so far: 49258.8461
The remainder is 7 after subtracting 13 from 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Step 11:
13 goes into 70 5 times with a remainder of 5.
The number 5 becomes the next digit in our result. 
Result so far: 49258.84615
If we take 65 away from 70, 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.

Moving on to step 12:
If we divide 50 by 13, we get 3 and a remainder of 11.
The next digit of our result is 3. 
Result so far: 49258.846153
Subtracting 39 from 50 leaves us with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

On to step 13:
13 goes into 110 8 times with a remainder of 6.
Use 8 as the next digit of our solution. 
Result so far: 49258.8461538
The remainder is 6 after subtracting 104 from 110.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Step 14:
60 divided by 13 is 4 with a remainder of 8.
The number 4 becomes the next digit in our result. 
Result so far: 49258.84615384
If we subtract 52 from 60, we get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Our division results in 49258.84615384 with a remaining 8e-09.