Let's divide 13250364 by 644
We're looking to find how many times 644 goes into 13250364.

Step 1:
644 goes into 1 0 times with a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 1, we end up with 1.
Fetch the next digit (3) from the dividend, attach it to 1 and continue: 13 / 644

Going ahead to step 2:
When dividing 13 by 644, we get 0 with a remainder of 13.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 13 leaves us with 13.
Bring next digit (2) of the dividend behind the 13 and repeat the process: 132 / 644

Moving on to step 3:
When dividing 132 by 644, we get 0 with a remainder of 132.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 132 leaves us with 132.
Take the next digit (5) from the dividend and append it to 132, then repeat: 1325 / 644

Going ahead to step 4:
1325 divided by 644 is 2 with a remainder of 37.
Put 2 as the next digit of the answer. 
Result so far: 2.0
Subtract 1288 from 1325 to get 37.
Fetch the next digit (0) from the dividend, attach it to 37 and continue: 370 / 644

On to step 5:
644 can be fit into 370 0 times, resulting in a remainder of 370.
Record the quotient 0 as the next digit in the result. 
Result so far: 20.0
Subtracting 0 from 370 leaves us with 370.
Include the next digit (3) from the dividend after 370, then repeat: 3703 / 644

Step 6:
If we divide 3703 by 644, we get 5 and a remainder of 483.
Record the quotient 5 as the next digit in the result. 
Result so far: 205.0
If we subtract 3220 from 3703, we get 483.
Append the next digit (6) from the dividend to 483 and continue with: 4836 / 644

On to step 7:
When dividing 4836 by 644, we get 7 with a remainder of 328.
Record the quotient 7 as the next digit in the result. 
Result so far: 2057.0
The remainder is 328 after subtracting 4508 from 4836.
Include the next digit (4) from the dividend after 328, then repeat: 3284 / 644

Step 8:
If we divide 3284 by 644, we get 5 and a remainder of 64.
The number 5 becomes the next digit in our result. 
Result so far: 20575.0
The remainder is 64 after subtracting 3220 from 3284.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Step 9:
640 divided by 644 is 0 with a remainder of 640.
Record the quotient 0 as the next digit in the result. 
Result so far: 20575.0
Subtract 0 from 640 to get 640.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6400, and continue the process.

Let's proceed to step 10:
644 goes into 6400 9 times with a remainder of 604.
The number 9 becomes the next digit in our result. 
Result so far: 20575.09
Deduct 5796 from 6400 and we're left with 604.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6040, and continue the process.

Going ahead to step 11:
644 goes into 6040 9 times with a remainder of 244.
The next digit of our result is 9. 
Result so far: 20575.099
Deduct 5796 from 6040 and we're left with 244.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2440, and continue the process.

Our division results in 20575.099 with a remaining 0.0244.