40588176 ÷ 644 
We want to divide 40588176 by 644.

Step 1:
If we divide 4 by 644, we get 0 and a remainder of 4.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 4 leaves us with 4.
Take the next digit (0) from the dividend and append it to 4, then repeat: 40 / 644

Moving on to step 2:
40 divided by 644 is 0 with a remainder of 40.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 40, we end up with 40.
Bring next digit (5) of the dividend behind the 40 and repeat the process: 405 / 644

Advancing to step 3:
644 goes into 405 0 times with a remainder of 405.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 405, we end up with 405.
Include the next digit (8) from the dividend after 405, then repeat: 4058 / 644

On to step 4:
The number 644 fits into 4058 6 times, leaving a remainder of 194.
Write down 6 as next digit of the result. 
Result so far: 6.0
Subtracting 3864 from 4058 leaves us with 194.
Bring next digit (8) of the dividend behind the 194 and repeat the process: 1948 / 644

Step 5:
When dividing 1948 by 644, we get 3 with a remainder of 16.
Put 3 as the next digit of the answer. 
Result so far: 63.0
Subtract 1932 from 1948 to get 16.
Bring next digit (1) of the dividend behind the 16 and repeat the process: 161 / 644

Let's proceed to step 6:
644 goes into 161 0 times with a remainder of 161.
The number 0 becomes the next digit in our result. 
Result so far: 630.0
Subtract 0 from 161 to get 161.
Take the next digit (7) from the dividend and append it to 161, then repeat: 1617 / 644

Going ahead to step 7:
1617 divided by 644 is 2 with a remainder of 329.
The next digit of our result is 2. 
Result so far: 6302.0
The remainder is 329 after subtracting 1288 from 1617.
Fetch the next digit (6) from the dividend, attach it to 329 and continue: 3296 / 644

Step 8:
If we divide 3296 by 644, we get 5 and a remainder of 76.
The next digit of our result is 5. 
Result so far: 63025.0
The remainder is 76 after subtracting 3220 from 3296.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

Advancing to step 9:
760 divided by 644 is 1 with a remainder of 116.
Write down 1 as next digit of the result. 
Result so far: 63025.1
If we take 644 away from 760, we end up with 116.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1160, and continue the process.

Let's proceed to step 10:
644 goes into 1160 1 times with a remainder of 516.
The number 1 becomes the next digit in our result. 
Result so far: 63025.11
Deduct 644 from 1160 and we're left with 516.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5160, and continue the process.

Our division results in 63025.11 with a remaining 0.516.