We're dividing 14516388 by 644 
We're looking to find how many times 644 goes into 14516388.

Step 1:
If we divide 1 by 644, we get 0 and a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Include the next digit (4) from the dividend after 1, then repeat: 14 / 644

On to step 2:
The number 644 fits into 14 0 times, leaving a remainder of 14.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 14 and we're left with 14.
Append the next digit (5) from the dividend to 14 and continue with: 145 / 644

On to step 3:
When dividing 145 by 644, we get 0 with a remainder of 145.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 145 and we're left with 145.
Append the next digit (1) from the dividend to 145 and continue with: 1451 / 644

Step 4:
1451 divided by 644 is 2 with a remainder of 163.
Put 2 as the next digit of the answer. 
Result so far: 2.0
If we subtract 1288 from 1451, we get 163.
Include the next digit (6) from the dividend after 163, then repeat: 1636 / 644

Moving on to step 5:
If we divide 1636 by 644, we get 2 and a remainder of 348.
The number 2 becomes the next digit in our result. 
Result so far: 22.0
Deduct 1288 from 1636 and we're left with 348.
Grab the next digit (3) from the dividend, add it to 348, then carry on: 3483 / 644

Let's proceed to step 6:
If we divide 3483 by 644, we get 5 and a remainder of 263.
Write down 5 as next digit of the result. 
Result so far: 225.0
Deduct 3220 from 3483 and we're left with 263.
Take the next digit (8) from the dividend and append it to 263, then repeat: 2638 / 644

Moving on to step 7:
644 can be fit into 2638 4 times, resulting in a remainder of 62.
Record the quotient 4 as the next digit in the result. 
Result so far: 2254.0
Deduct 2576 from 2638 and we're left with 62.
Append the next digit (8) from the dividend to 62 and continue with: 628 / 644

On to step 8:
644 can be fit into 628 0 times, resulting in a remainder of 628.
Write down 0 as next digit of the result. 
Result so far: 22540.0
If we take 0 away from 628, we end up with 628.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6280, and continue the process.

Step 9:
If we divide 6280 by 644, we get 9 and a remainder of 484.
Put 9 as the next digit of the answer. 
Result so far: 22540.9
Subtract 5796 from 6280 to get 484.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4840, and continue the process.

Moving on to step 10:
When dividing 4840 by 644, we get 7 with a remainder of 332.
Use 7 as the next digit of our solution. 
Result so far: 22540.97
If we subtract 4508 from 4840, we get 332.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3320, and continue the process.

Advancing to step 11:
If we divide 3320 by 644, we get 5 and a remainder of 100.
Record the quotient 5 as the next digit in the result. 
Result so far: 22540.975
The remainder is 100 after subtracting 3220 from 3320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

On to step 12:
The number 644 fits into 1000 1 times, leaving a remainder of 356.
The number 1 becomes the next digit in our result. 
Result so far: 22540.9751
Subtract 644 from 1000 to get 356.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3560, and continue the process.

Moving on to step 13:
3560 divided by 644 is 5 with a remainder of 340.
The next digit of our result is 5. 
Result so far: 22540.97515
Deduct 3220 from 3560 and we're left with 340.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3400, and continue the process.

On to step 14:
644 can be fit into 3400 5 times, resulting in a remainder of 180.
The next digit of our result is 5. 
Result so far: 22540.975155
Subtracting 3220 from 3400 leaves us with 180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1800, and continue the process.

The final result is 22540.975155 with a remainder of 1.8e-05.