29918402 divided by 645 
We want to figure out the number of times 29918402 can be divided by 645.

Step 1:
645 goes into 2 0 times with a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 2 after subtracting 0 from 2.
Take the next digit (9) from the dividend and append it to 2, then repeat: 29 / 645

Going ahead to step 2:
645 can be fit into 29 0 times, resulting in a remainder of 29.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 29 after subtracting 0 from 29.
Grab the next digit (9) from the dividend, add it to 29, then carry on: 299 / 645

Advancing to step 3:
645 goes into 299 0 times with a remainder of 299.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 299, we get 299.
Bring next digit (1) of the dividend behind the 299 and repeat the process: 2991 / 645

On to step 4:
645 can be fit into 2991 4 times, resulting in a remainder of 411.
Write down 4 as next digit of the result. 
Result so far: 4.0
The remainder is 411 after subtracting 2580 from 2991.
Bring next digit (8) of the dividend behind the 411 and repeat the process: 4118 / 645

Let's proceed to step 5:
645 can be fit into 4118 6 times, resulting in a remainder of 248.
Use 6 as the next digit of our solution. 
Result so far: 46.0
Subtract 3870 from 4118 to get 248.
Include the next digit (4) from the dividend after 248, then repeat: 2484 / 645

Let's proceed to step 6:
645 goes into 2484 3 times with a remainder of 549.
The next digit of our result is 3. 
Result so far: 463.0
The remainder is 549 after subtracting 1935 from 2484.
Fetch the next digit (0) from the dividend, attach it to 549 and continue: 5490 / 645

On to step 7:
645 can be fit into 5490 8 times, resulting in a remainder of 330.
The number 8 becomes the next digit in our result. 
Result so far: 4638.0
Deduct 5160 from 5490 and we're left with 330.
Include the next digit (2) from the dividend after 330, then repeat: 3302 / 645

Going ahead to step 8:
645 can be fit into 3302 5 times, resulting in a remainder of 77.
The number 5 becomes the next digit in our result. 
Result so far: 46385.0
If we take 3225 away from 3302, we end up with 77.
Since there are no more digits in the dividend, we add a zero to the remainder making it 770, and continue the process.

Advancing to step 9:
When dividing 770 by 645, we get 1 with a remainder of 125.
The next digit of our result is 1. 
Result so far: 46385.1
If we subtract 645 from 770, we get 125.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1250, and continue the process.

On to step 10:
1250 divided by 645 is 1 with a remainder of 605.
Use 1 as the next digit of our solution. 
Result so far: 46385.11
Subtract 645 from 1250 to get 605.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6050, and continue the process.

The final outcome is 46385.11, with a leftover of 0.605.