29921 ÷ 45 
We want to figure out the number of times 29921 can be divided by 45.

On to step 1:
The number 45 fits into 2 0 times, leaving a remainder of 2.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 2, we get 2.
Include the next digit (9) from the dividend after 2, then repeat: 29 / 45

On to step 2:
29 divided by 45 is 0 with a remainder of 29.
Record the quotient 0 as the next digit in 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 / 45

Step 3:
299 divided by 45 is 6 with a remainder of 29.
The number 6 becomes the next digit in our result. 
Result so far: 6.0
If we subtract 270 from 299, we get 29.
Take the next digit (2) from the dividend and append it to 29, then repeat: 292 / 45

Moving on to step 4:
45 goes into 292 6 times with a remainder of 22.
Record the quotient 6 as the next digit in the result. 
Result so far: 66.0
Subtracting 270 from 292 leaves us with 22.
Include the next digit (1) from the dividend after 22, then repeat: 221 / 45

Let's proceed to step 5:
If we divide 221 by 45, we get 4 and a remainder of 41.
Use 4 as the next digit of our solution. 
Result so far: 664.0
Deduct 180 from 221 and we're left with 41.
Since there are no more digits in the dividend, we add a zero to the remainder making it 410, and continue the process.

Step 6:
45 can be fit into 410 9 times, resulting in a remainder of 5.
Put 9 as the next digit of the answer. 
Result so far: 664.9
Deduct 405 from 410 and we're left with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Advancing to step 7:
The number 45 fits into 50 1 times, leaving a remainder of 5.
The number 1 becomes the next digit in our result. 
Result so far: 664.91
The remainder is 5 after subtracting 45 from 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Step 8:
If we divide 50 by 45, we get 1 and a remainder of 5.
The next digit of our result is 1. 
Result so far: 664.911
The remainder is 5 after subtracting 45 from 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

The final result is 664.911 with a remainder of 0.0005.