49660540 divided by 646 
Our goal is to divide 49660540 by 646.

On to step 1:
646 goes into 4 0 times with a remainder of 4.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 4 leaves us with 4.
Grab the next digit (9) from the dividend, add it to 4, then carry on: 49 / 646

Step 2:
646 can be fit into 49 0 times, resulting in a remainder of 49.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 49 to get 49.
Include the next digit (6) from the dividend after 49, then repeat: 496 / 646

Advancing to step 3:
When dividing 496 by 646, we get 0 with a remainder of 496.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 496 to get 496.
Take the next digit (6) from the dividend and append it to 496, then repeat: 4966 / 646

Moving on to step 4:
4966 divided by 646 is 7 with a remainder of 444.
Put 7 as the next digit of the answer. 
Result so far: 7.0
Deduct 4522 from 4966 and we're left with 444.
Bring next digit (0) of the dividend behind the 444 and repeat the process: 4440 / 646

Let's proceed to step 5:
The number 646 fits into 4440 6 times, leaving a remainder of 564.
The number 6 becomes the next digit in our result. 
Result so far: 76.0
Deduct 3876 from 4440 and we're left with 564.
Grab the next digit (5) from the dividend, add it to 564, then carry on: 5645 / 646

Advancing to step 6:
The number 646 fits into 5645 8 times, leaving a remainder of 477.
Use 8 as the next digit of our solution. 
Result so far: 768.0
Subtract 5168 from 5645 to get 477.
Bring next digit (4) of the dividend behind the 477 and repeat the process: 4774 / 646

Going ahead to step 7:
When dividing 4774 by 646, we get 7 with a remainder of 252.
Record the quotient 7 as the next digit in the result. 
Result so far: 7687.0
If we take 4522 away from 4774, we end up with 252.
Grab the next digit (0) from the dividend, add it to 252, then carry on: 2520 / 646

Step 8:
If we divide 2520 by 646, we get 3 and a remainder of 582.
Write down 3 as next digit of the result. 
Result so far: 76873.0
If we take 1938 away from 2520, we end up with 582.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5820, and continue the process.

Advancing to step 9:
When dividing 5820 by 646, we get 9 with a remainder of 6.
Record the quotient 9 as the next digit in the result. 
Result so far: 76873.9
If we take 5814 away from 5820, we end up with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Going ahead to step 10:
When dividing 60 by 646, we get 0 with a remainder of 60.
Write down 0 as next digit of the result. 
Result so far: 76873.9
Subtract 0 from 60 to get 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Moving on to step 11:
646 can be fit into 600 0 times, resulting in a remainder of 600.
Use 0 as the next digit of our solution. 
Result so far: 76873.9
Subtracting 0 from 600 leaves us with 600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6000, and continue the process.

The final result is 76873.9 with a remainder of 0.06.