49044902 divided by 645 
We want to figure out the number of times 49044902 can be divided by 645.

Step 1:
The number 645 fits into 4 0 times, leaving a remainder of 4.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 4, we get 4.
Grab the next digit (9) from the dividend, add it to 4, then carry on: 49 / 645

Let's proceed to step 2:
The number 645 fits into 49 0 times, leaving a remainder of 49.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 49 after subtracting 0 from 49.
Fetch the next digit (0) from the dividend, attach it to 49 and continue: 490 / 645

Let's proceed to step 3:
If we divide 490 by 645, we get 0 and a remainder of 490.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 490, we end up with 490.
Fetch the next digit (4) from the dividend, attach it to 490 and continue: 4904 / 645

On to step 4:
When dividing 4904 by 645, we get 7 with a remainder of 389.
Record the quotient 7 as the next digit in the result. 
Result so far: 7.0
The remainder is 389 after subtracting 4515 from 4904.
Include the next digit (4) from the dividend after 389, then repeat: 3894 / 645

Moving on to step 5:
3894 divided by 645 is 6 with a remainder of 24.
Record the quotient 6 as the next digit in the result. 
Result so far: 76.0
If we take 3870 away from 3894, we end up with 24.
Include the next digit (9) from the dividend after 24, then repeat: 249 / 645

Advancing to step 6:
645 can be fit into 249 0 times, resulting in a remainder of 249.
Use 0 as the next digit of our solution. 
Result so far: 760.0
Subtract 0 from 249 to get 249.
Fetch the next digit (0) from the dividend, attach it to 249 and continue: 2490 / 645

On to step 7:
2490 divided by 645 is 3 with a remainder of 555.
The next digit of our result is 3. 
Result so far: 7603.0
If we subtract 1935 from 2490, we get 555.
Append the next digit (2) from the dividend to 555 and continue with: 5552 / 645

Step 8:
645 can be fit into 5552 8 times, resulting in a remainder of 392.
Use 8 as the next digit of our solution. 
Result so far: 76038.0
Subtracting 5160 from 5552 leaves us with 392.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3920, and continue the process.

Let's proceed to step 9:
When dividing 3920 by 645, we get 6 with a remainder of 50.
Use 6 as the next digit of our solution. 
Result so far: 76038.6
If we subtract 3870 from 3920, we get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

On to step 10:
645 can be fit into 500 0 times, resulting in a remainder of 500.
Put 0 as the next digit of the answer. 
Result so far: 76038.6
If we subtract 0 from 500, we get 500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5000, and continue the process.

Step 11:
If we divide 5000 by 645, we get 7 and a remainder of 485.
Put 7 as the next digit of the answer. 
Result so far: 76038.607
If we take 4515 away from 5000, we end up with 485.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4850, and continue the process.

On to step 12:
645 can be fit into 4850 7 times, resulting in a remainder of 335.
Record the quotient 7 as the next digit in the result. 
Result so far: 76038.6077
Deduct 4515 from 4850 and we're left with 335.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3350, and continue the process.

The quotient of the division is 76038.6077, and the remainder is 0.00335.