Let's divide 29986411 by 644
We want to divide 29986411 by 644.

Step 1:
If we divide 2 by 644, we get 0 and a remainder of 2.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 2 leaves us with 2.
Fetch the next digit (9) from the dividend, attach it to 2 and continue: 29 / 644

Step 2:
If we divide 29 by 644, we get 0 and a remainder of 29.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 29 leaves us with 29.
Take the next digit (9) from the dividend and append it to 29, then repeat: 299 / 644

Advancing to step 3:
299 divided by 644 is 0 with a remainder of 299.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 299 to get 299.
Fetch the next digit (8) from the dividend, attach it to 299 and continue: 2998 / 644

On to step 4:
The number 644 fits into 2998 4 times, leaving a remainder of 422.
Put 4 as the next digit of the answer. 
Result so far: 4.0
The remainder is 422 after subtracting 2576 from 2998.
Append the next digit (6) from the dividend to 422 and continue with: 4226 / 644

Advancing to step 5:
4226 divided by 644 is 6 with a remainder of 362.
Write down 6 as next digit of the result. 
Result so far: 46.0
If we subtract 3864 from 4226, we get 362.
Fetch the next digit (4) from the dividend, attach it to 362 and continue: 3624 / 644

Going ahead to step 6:
644 goes into 3624 5 times with a remainder of 404.
Write down 5 as next digit of the result. 
Result so far: 465.0
The remainder is 404 after subtracting 3220 from 3624.
Bring next digit (1) of the dividend behind the 404 and repeat the process: 4041 / 644

Advancing to step 7:
4041 divided by 644 is 6 with a remainder of 177.
The next digit of our result is 6. 
Result so far: 4656.0
The remainder is 177 after subtracting 3864 from 4041.
Fetch the next digit (1) from the dividend, attach it to 177 and continue: 1771 / 644

On to step 8:
If we divide 1771 by 644, we get 2 and a remainder of 483.
The number 2 becomes the next digit in our result. 
Result so far: 46562.0
If we subtract 1288 from 1771, we get 483.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4830, and continue the process.

Let's proceed to step 9:
4830 divided by 644 is 7 with a remainder of 322.
Use 7 as the next digit of our solution. 
Result so far: 46562.7
Subtract 4508 from 4830 to get 322.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3220, and continue the process.

Step 10:
644 can be fit into 3220 5 times, resulting in a remainder of 0.
Write down 5 as next digit of the result. 
Result so far: 46562.75
Subtract 3220 from 3220 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Going ahead to step 11:
644 goes into 0 0 times with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 46562.75
Subtract 0 from 0 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Moving on to step 12:
If we divide 0 by 644, we get 0 and a remainder of 0.
The next digit of our result is 0. 
Result so far: 46562.75
If we subtract 0 from 0, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The quotient of the division is 46562.75, and the remainder is 0.0.