We're dividing 640626 by 13 
Let's see how many times 13 fits into 640626.

Moving on to step 1:
13 goes into 6 0 times with a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Take the next digit (4) from the dividend and append it to 6, then repeat: 64 / 13

On to step 2:
13 can be fit into 64 4 times, resulting in a remainder of 12.
Put 4 as the next digit of the answer. 
Result so far: 4.0
Deduct 52 from 64 and we're left with 12.
Fetch the next digit (0) from the dividend, attach it to 12 and continue: 120 / 13

On to step 3:
120 divided by 13 is 9 with a remainder of 3.
Record the quotient 9 as the next digit in the result. 
Result so far: 49.0
The remainder is 3 after subtracting 117 from 120.
Grab the next digit (6) from the dividend, add it to 3, then carry on: 36 / 13

Going ahead to step 4:
13 can be fit into 36 2 times, resulting in a remainder of 10.
Record the quotient 2 as the next digit in the result. 
Result so far: 492.0
If we subtract 26 from 36, we get 10.
Include the next digit (2) from the dividend after 10, then repeat: 102 / 13

Let's proceed to step 5:
If we divide 102 by 13, we get 7 and a remainder of 11.
Record the quotient 7 as the next digit in the result. 
Result so far: 4927.0
Deduct 91 from 102 and we're left with 11.
Grab the next digit (6) from the dividend, add it to 11, then carry on: 116 / 13

Moving on to step 6:
The number 13 fits into 116 8 times, leaving a remainder of 12.
Use 8 as the next digit of our solution. 
Result so far: 49278.0
Deduct 104 from 116 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.

Let's proceed to step 7:
13 can be fit into 120 9 times, resulting in a remainder of 3.
The next digit of our result is 9. 
Result so far: 49278.9
Deduct 117 from 120 and we're left 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 8:
13 can be fit into 30 2 times, resulting in a remainder of 4.
Record the quotient 2 as the next digit in the result. 
Result so far: 49278.92
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.

Going ahead to step 9:
13 goes into 40 3 times with a remainder of 1.
Record the quotient 3 as the next digit in the result. 
Result so far: 49278.923
Deduct 39 from 40 and we're left 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.

On to step 10:
10 divided by 13 is 0 with a remainder of 10.
Write down 0 as next digit of the result. 
Result so far: 49278.923
If we take 0 away from 10, we end up 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.

Moving on to step 11:
When dividing 100 by 13, we get 7 with a remainder of 9.
The next digit of our result is 7. 
Result so far: 49278.92307
If we subtract 91 from 100, we 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.

On to step 12:
The number 13 fits into 90 6 times, leaving a remainder of 12.
The next digit of our result is 6. 
Result so far: 49278.923076
Subtract 78 from 90 to get 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 13:
If we divide 120 by 13, we get 9 and a remainder of 3.
The number 9 becomes the next digit in our result. 
Result so far: 49278.9230769
If we take 117 away from 120, we end up 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.

Advancing to step 14:
30 divided by 13 is 2 with a remainder of 4.
Use 2 as the next digit of our solution. 
Result so far: 49278.92307692
If we subtract 26 from 30, we get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

After the division, we end up with 49278.92307692 and a remainder of 4e-09.