We're dividing 29423644 by 643 
Let's see how many times 643 fits into 29423644.

On to step 1:
643 goes into 2 0 times with a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 2 after subtracting 0 from 2.
Append the next digit (9) from the dividend to 2 and continue with: 29 / 643

On to step 2:
The number 643 fits into 29 0 times, leaving a remainder of 29.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 29, we end up with 29.
Bring next digit (4) of the dividend behind the 29 and repeat the process: 294 / 643

Going ahead to step 3:
294 divided by 643 is 0 with a remainder of 294.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 294 to get 294.
Fetch the next digit (2) from the dividend, attach it to 294 and continue: 2942 / 643

On to step 4:
When dividing 2942 by 643, we get 4 with a remainder of 370.
Put 4 as the next digit of the answer. 
Result so far: 4.0
The remainder is 370 after subtracting 2572 from 2942.
Include the next digit (3) from the dividend after 370, then repeat: 3703 / 643

Advancing to step 5:
643 goes into 3703 5 times with a remainder of 488.
The number 5 becomes the next digit in our result. 
Result so far: 45.0
Deduct 3215 from 3703 and we're left with 488.
Take the next digit (6) from the dividend and append it to 488, then repeat: 4886 / 643

Step 6:
4886 divided by 643 is 7 with a remainder of 385.
The number 7 becomes the next digit in our result. 
Result so far: 457.0
Subtracting 4501 from 4886 leaves us with 385.
Take the next digit (4) from the dividend and append it to 385, then repeat: 3854 / 643

Step 7:
3854 divided by 643 is 5 with a remainder of 639.
Record the quotient 5 as the next digit in the result. 
Result so far: 4575.0
The remainder is 639 after subtracting 3215 from 3854.
Take the next digit (4) from the dividend and append it to 639, then repeat: 6394 / 643

Advancing to step 8:
The number 643 fits into 6394 9 times, leaving a remainder of 607.
The next digit of our result is 9. 
Result so far: 45759.0
If we subtract 5787 from 6394, we get 607.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6070, and continue the process.

Going ahead to step 9:
6070 divided by 643 is 9 with a remainder of 283.
Put 9 as the next digit of the answer. 
Result so far: 45759.9
The remainder is 283 after subtracting 5787 from 6070.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2830, and continue the process.

Moving on to step 10:
643 can be fit into 2830 4 times, resulting in a remainder of 258.
The number 4 becomes the next digit in our result. 
Result so far: 45759.94
Subtract 2572 from 2830 to get 258.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2580, and continue the process.

Going ahead to step 11:
If we divide 2580 by 643, we get 4 and a remainder of 8.
Record the quotient 4 as the next digit in the result. 
Result so far: 45759.944
Subtract 2572 from 2580 to get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

The quotient of the division is 45759.944, and the remainder is 0.0008.