Let's divide 29412309 by 640
We want to figure out the number of times 29412309 can be divided by 640.

Step 1:
2 divided by 640 is 0 with a remainder of 2.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 2 after subtracting 0 from 2.
Grab the next digit (9) from the dividend, add it to 2, then carry on: 29 / 640

Moving on to step 2:
640 goes into 29 0 times with a remainder of 29.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 29 to get 29.
Take the next digit (4) from the dividend and append it to 29, then repeat: 294 / 640

Advancing to step 3:
640 goes into 294 0 times with a remainder of 294.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 294, we get 294.
Include the next digit (1) from the dividend after 294, then repeat: 2941 / 640

Going ahead to step 4:
640 goes into 2941 4 times with a remainder of 381.
Record the quotient 4 as the next digit in the result. 
Result so far: 4.0
The remainder is 381 after subtracting 2560 from 2941.
Include the next digit (2) from the dividend after 381, then repeat: 3812 / 640

On to step 5:
If we divide 3812 by 640, we get 5 and a remainder of 612.
Record the quotient 5 as the next digit in the result. 
Result so far: 45.0
If we subtract 3200 from 3812, we get 612.
Take the next digit (3) from the dividend and append it to 612, then repeat: 6123 / 640

Let's proceed to step 6:
6123 divided by 640 is 9 with a remainder of 363.
Use 9 as the next digit of our solution. 
Result so far: 459.0
If we subtract 5760 from 6123, we get 363.
Bring next digit (0) of the dividend behind the 363 and repeat the process: 3630 / 640

Let's proceed to step 7:
If we divide 3630 by 640, we get 5 and a remainder of 430.
The next digit of our result is 5. 
Result so far: 4595.0
Deduct 3200 from 3630 and we're left with 430.
Fetch the next digit (9) from the dividend, attach it to 430 and continue: 4309 / 640

On to step 8:
640 can be fit into 4309 6 times, resulting in a remainder of 469.
Record the quotient 6 as the next digit in the result. 
Result so far: 45956.0
If we subtract 3840 from 4309, we get 469.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4690, and continue the process.

On to step 9:
4690 divided by 640 is 7 with a remainder of 210.
Use 7 as the next digit of our solution. 
Result so far: 45956.7
If we subtract 4480 from 4690, we get 210.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2100, and continue the process.

Moving on to step 10:
If we divide 2100 by 640, we get 3 and a remainder of 180.
Write down 3 as next digit of the result. 
Result so far: 45956.73
Subtracting 1920 from 2100 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.

Step 11:
640 can be fit into 1800 2 times, resulting in a remainder of 520.
Record the quotient 2 as the next digit in the result. 
Result so far: 45956.732
Subtract 1280 from 1800 to get 520.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5200, and continue the process.

Moving on to step 12:
When dividing 5200 by 640, we get 8 with a remainder of 80.
The next digit of our result is 8. 
Result so far: 45956.7328
If we take 5120 away from 5200, we end up with 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Advancing to step 13:
640 can be fit into 800 1 times, resulting in a remainder of 160.
Record the quotient 1 as the next digit in the result. 
Result so far: 45956.73281
If we take 640 away from 800, we end up with 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

On to step 14:
640 goes into 1600 2 times with a remainder of 320.
Put 2 as the next digit of the answer. 
Result so far: 45956.732812
Subtracting 1280 from 1600 leaves us with 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3200, and continue the process.

Step 15:
640 goes into 3200 5 times with a remainder of 0.
The number 5 becomes the next digit in our result. 
Result so far: 45956.7328125
If we take 3200 away from 3200, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Advancing to step 16:
When dividing 0 by 640, we get 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 45956.7328125
Subtracting 0 from 0 leaves us with 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 final outcome is 45956.7328125, with a leftover of 0.0.