We look at the division of 49306381 by 642 
Let's see how many times 642 fits into 49306381.

Step 1:
642 goes into 4 0 times with a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 4, we end up with 4.
Bring next digit (9) of the dividend behind the 4 and repeat the process: 49 / 642

Advancing to step 2:
642 goes into 49 0 times with a remainder of 49.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 49 after subtracting 0 from 49.
Include the next digit (3) from the dividend after 49, then repeat: 493 / 642

Step 3:
If we divide 493 by 642, we get 0 and a remainder of 493.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 493 after subtracting 0 from 493.
Append the next digit (0) from the dividend to 493 and continue with: 4930 / 642

Moving on to step 4:
642 goes into 4930 7 times with a remainder of 436.
The next digit of our result is 7. 
Result so far: 7.0
Deduct 4494 from 4930 and we're left with 436.
Include the next digit (6) from the dividend after 436, then repeat: 4366 / 642

On to step 5:
642 can be fit into 4366 6 times, resulting in a remainder of 514.
Put 6 as the next digit of the answer. 
Result so far: 76.0
If we subtract 3852 from 4366, we get 514.
Include the next digit (3) from the dividend after 514, then repeat: 5143 / 642

Step 6:
5143 divided by 642 is 8 with a remainder of 7.
Use 8 as the next digit of our solution. 
Result so far: 768.0
Deduct 5136 from 5143 and we're left with 7.
Fetch the next digit (8) from the dividend, attach it to 7 and continue: 78 / 642

On to step 7:
642 can be fit into 78 0 times, resulting in a remainder of 78.
The number 0 becomes the next digit in our result. 
Result so far: 7680.0
The remainder is 78 after subtracting 0 from 78.
Include the next digit (1) from the dividend after 78, then repeat: 781 / 642

Moving on to step 8:
642 can be fit into 781 1 times, resulting in a remainder of 139.
The next digit of our result is 1. 
Result so far: 76801.0
Subtract 642 from 781 to get 139.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1390, and continue the process.

Step 9:
The number 642 fits into 1390 2 times, leaving a remainder of 106.
The number 2 becomes the next digit in our result. 
Result so far: 76801.2
Subtract 1284 from 1390 to get 106.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1060, and continue the process.

Moving on to step 10:
642 goes into 1060 1 times with a remainder of 418.
The number 1 becomes the next digit in our result. 
Result so far: 76801.21
Deduct 642 from 1060 and we're left with 418.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4180, and continue the process.

Advancing to step 11:
642 can be fit into 4180 6 times, resulting in a remainder of 328.
Put 6 as the next digit of the answer. 
Result so far: 76801.216
Subtracting 3852 from 4180 leaves us with 328.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3280, and continue the process.

Step 12:
642 can be fit into 3280 5 times, resulting in a remainder of 70.
Put 5 as the next digit of the answer. 
Result so far: 76801.2165
If we subtract 3210 from 3280, we get 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Let's proceed to step 13:
When dividing 700 by 642, we get 1 with a remainder of 58.
Write down 1 as next digit of the result. 
Result so far: 76801.21651
If we take 642 away from 700, we end up with 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

Going ahead to step 14:
642 can be fit into 580 0 times, resulting in a remainder of 580.
Record the quotient 0 as the next digit in the result. 
Result so far: 76801.21651
The remainder is 580 after subtracting 0 from 580.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5800, and continue the process.

Moving on to step 15:
5800 divided by 642 is 9 with a remainder of 22.
Write down 9 as next digit of the result. 
Result so far: 76801.2165109
Deduct 5778 from 5800 and we're left with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Going ahead to step 16:
If we divide 220 by 642, we get 0 and a remainder of 220.
Write down 0 as next digit of the result. 
Result so far: 76801.2165109
If we take 0 away from 220, we end up with 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2200, and continue the process.

The final outcome is 76801.2165109, with a leftover of 2.2e-07.