49358312 ÷ 648 
We want to figure out the number of times 49358312 can be divided by 648.

Moving on to step 1:
The number 648 fits into 4 0 times, leaving a remainder of 4.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 4 after subtracting 0 from 4.
Include the next digit (9) from the dividend after 4, then repeat: 49 / 648

Advancing to step 2:
When dividing 49 by 648, we get 0 with a remainder of 49.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 49 after subtracting 0 from 49.
Take the next digit (3) from the dividend and append it to 49, then repeat: 493 / 648

Advancing to step 3:
The number 648 fits into 493 0 times, leaving a remainder of 493.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 493, we end up with 493.
Bring next digit (5) of the dividend behind the 493 and repeat the process: 4935 / 648

Let's proceed to step 4:
When dividing 4935 by 648, we get 7 with a remainder of 399.
Record the quotient 7 as the next digit in the result. 
Result so far: 7.0
The remainder is 399 after subtracting 4536 from 4935.
Fetch the next digit (8) from the dividend, attach it to 399 and continue: 3998 / 648

Let's proceed to step 5:
When dividing 3998 by 648, we get 6 with a remainder of 110.
Use 6 as the next digit of our solution. 
Result so far: 76.0
If we subtract 3888 from 3998, we get 110.
Fetch the next digit (3) from the dividend, attach it to 110 and continue: 1103 / 648

Let's proceed to step 6:
If we divide 1103 by 648, we get 1 and a remainder of 455.
Write down 1 as next digit of the result. 
Result so far: 761.0
Subtracting 648 from 1103 leaves us with 455.
Include the next digit (1) from the dividend after 455, then repeat: 4551 / 648

Step 7:
The number 648 fits into 4551 7 times, leaving a remainder of 15.
The next digit of our result is 7. 
Result so far: 7617.0
Subtracting 4536 from 4551 leaves us with 15.
Fetch the next digit (2) from the dividend, attach it to 15 and continue: 152 / 648

Step 8:
648 can be fit into 152 0 times, resulting in a remainder of 152.
Put 0 as the next digit of the answer. 
Result so far: 76170.0
Deduct 0 from 152 and we're left with 152.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1520, and continue the process.

Moving on to step 9:
648 goes into 1520 2 times with a remainder of 224.
The next digit of our result is 2. 
Result so far: 76170.2
Subtract 1296 from 1520 to get 224.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2240, and continue the process.

Advancing to step 10:
The number 648 fits into 2240 3 times, leaving a remainder of 296.
The next digit of our result is 3. 
Result so far: 76170.23
Subtracting 1944 from 2240 leaves us with 296.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2960, and continue the process.

Step 11:
If we divide 2960 by 648, we get 4 and a remainder of 368.
Use 4 as the next digit of our solution. 
Result so far: 76170.234
Subtract 2592 from 2960 to get 368.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3680, and continue the process.

Advancing to step 12:
If we divide 3680 by 648, we get 5 and a remainder of 440.
Write down 5 as next digit of the result. 
Result so far: 76170.2345
Deduct 3240 from 3680 and we're left with 440.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4400, and continue the process.

On to step 13:
The number 648 fits into 4400 6 times, leaving a remainder of 512.
The next digit of our result is 6. 
Result so far: 76170.23456
If we take 3888 away from 4400, we end up with 512.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5120, and continue the process.

Moving on to step 14:
5120 divided by 648 is 7 with a remainder of 584.
Write down 7 as next digit of the result. 
Result so far: 76170.234567
Subtract 4536 from 5120 to get 584.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5840, and continue the process.

Step 15:
When dividing 5840 by 648, we get 9 with a remainder of 8.
The next digit of our result is 9. 
Result so far: 76170.2345679
Subtracting 5832 from 5840 leaves us with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Moving on to step 16:
When dividing 80 by 648, we get 0 with a remainder of 80.
Use 0 as the next digit of our solution. 
Result so far: 76170.2345679
Subtract 0 from 80 to get 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Our division results in 76170.2345679 with a remaining 8e-08.