29621290 ÷ 45 
We're looking to find how many times 45 goes into 29621290.

On to step 1:
The number 45 fits into 2 0 times, leaving a remainder of 2.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 2 and we're left with 2.
Bring next digit (9) of the dividend behind the 2 and repeat the process: 29 / 45

Advancing to step 2:
45 can be fit into 29 0 times, resulting in a remainder of 29.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 29 to get 29.
Take the next digit (6) from the dividend and append it to 29, then repeat: 296 / 45

Moving on to step 3:
If we divide 296 by 45, we get 6 and a remainder of 26.
The number 6 becomes the next digit in our result. 
Result so far: 6.0
If we take 270 away from 296, we end up with 26.
Grab the next digit (2) from the dividend, add it to 26, then carry on: 262 / 45

Moving on to step 4:
The number 45 fits into 262 5 times, leaving a remainder of 37.
Use 5 as the next digit of our solution. 
Result so far: 65.0
If we subtract 225 from 262, we get 37.
Fetch the next digit (1) from the dividend, attach it to 37 and continue: 371 / 45

Step 5:
45 can be fit into 371 8 times, resulting in a remainder of 11.
Record the quotient 8 as the next digit in the result. 
Result so far: 658.0
The remainder is 11 after subtracting 360 from 371.
Grab the next digit (2) from the dividend, add it to 11, then carry on: 112 / 45

Advancing to step 6:
If we divide 112 by 45, we get 2 and a remainder of 22.
Write down 2 as next digit of the result. 
Result so far: 6582.0
Deduct 90 from 112 and we're left with 22.
Append the next digit (9) from the dividend to 22 and continue with: 229 / 45

Moving on to step 7:
45 can be fit into 229 5 times, resulting in a remainder of 4.
Write down 5 as next digit of the result. 
Result so far: 65825.0
If we take 225 away from 229, we end up with 4.
Fetch the next digit (0) from the dividend, attach it to 4 and continue: 40 / 45

Moving on to step 8:
When dividing 40 by 45, we get 0 with a remainder of 40.
Use 0 as the next digit of our solution. 
Result so far: 658250.0
If we take 0 away from 40, we end up with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Advancing to step 9:
45 can be fit into 400 8 times, resulting in a remainder of 40.
Put 8 as the next digit of the answer. 
Result so far: 658250.8
Deduct 360 from 400 and we're left with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Let's proceed to step 10:
If we divide 400 by 45, we get 8 and a remainder of 40.
The number 8 becomes the next digit in our result. 
Result so far: 658250.88
Subtracting 360 from 400 leaves us with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Our division results in 658250.88 with a remaining 0.04.