We're dividing 40342729 by 310 
We want to divide 40342729 by 310.

Let's proceed to step 1:
If we divide 4 by 310, we get 0 and a remainder of 4.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 4 to get 4.
Append the next digit (0) from the dividend to 4 and continue with: 40 / 310

Going ahead to step 2:
The number 310 fits into 40 0 times, leaving a remainder of 40.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 40, we get 40.
Fetch the next digit (3) from the dividend, attach it to 40 and continue: 403 / 310

Advancing to step 3:
When dividing 403 by 310, we get 1 with a remainder of 93.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Deduct 310 from 403 and we're left with 93.
Include the next digit (4) from the dividend after 93, then repeat: 934 / 310

Step 4:
If we divide 934 by 310, we get 3 and a remainder of 4.
Put 3 as the next digit of the answer. 
Result so far: 13.0
Subtracting 930 from 934 leaves us with 4.
Include the next digit (2) from the dividend after 4, then repeat: 42 / 310

Let's proceed to step 5:
310 goes into 42 0 times with a remainder of 42.
Use 0 as the next digit of our solution. 
Result so far: 130.0
If we subtract 0 from 42, we get 42.
Include the next digit (7) from the dividend after 42, then repeat: 427 / 310

On to step 6:
The number 310 fits into 427 1 times, leaving a remainder of 117.
The number 1 becomes the next digit in our result. 
Result so far: 1301.0
Deduct 310 from 427 and we're left with 117.
Append the next digit (2) from the dividend to 117 and continue with: 1172 / 310

Moving on to step 7:
The number 310 fits into 1172 3 times, leaving a remainder of 242.
The next digit of our result is 3. 
Result so far: 13013.0
Deduct 930 from 1172 and we're left with 242.
Append the next digit (9) from the dividend to 242 and continue with: 2429 / 310

Moving on to step 8:
310 goes into 2429 7 times with a remainder of 259.
The next digit of our result is 7. 
Result so far: 130137.0
Deduct 2170 from 2429 and we're left with 259.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2590, and continue the process.

Moving on to step 9:
When dividing 2590 by 310, we get 8 with a remainder of 110.
The number 8 becomes the next digit in our result. 
Result so far: 130137.8
Subtracting 2480 from 2590 leaves us with 110.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1100, and continue the process.

Going ahead to step 10:
If we divide 1100 by 310, we get 3 and a remainder of 170.
Record the quotient 3 as the next digit in the result. 
Result so far: 130137.83
Deduct 930 from 1100 and we're left with 170.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1700, and continue the process.

On to step 11:
310 goes into 1700 5 times with a remainder of 150.
The next digit of our result is 5. 
Result so far: 130137.835
Deduct 1550 from 1700 and we're left with 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1500, and continue the process.

Step 12:
The number 310 fits into 1500 4 times, leaving a remainder of 260.
Put 4 as the next digit of the answer. 
Result so far: 130137.8354
Deduct 1240 from 1500 and we're left with 260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2600, and continue the process.

Going ahead to step 13:
310 can be fit into 2600 8 times, resulting in a remainder of 120.
The next digit of our result is 8. 
Result so far: 130137.83548
Deduct 2480 from 2600 and we're left with 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

Let's proceed to step 14:
When dividing 1200 by 310, we get 3 with a remainder of 270.
Record the quotient 3 as the next digit in the result. 
Result so far: 130137.835483
Subtract 930 from 1200 to get 270.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2700, and continue the process.

Moving on to step 15:
310 goes into 2700 8 times with a remainder of 220.
Use 8 as the next digit of our solution. 
Result so far: 130137.8354838
Subtract 2480 from 2700 to get 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2200, and continue the process.

Moving on to step 16:
310 goes into 2200 7 times with a remainder of 30.
Use 7 as the next digit of our solution. 
Result so far: 130137.83548387
If we subtract 2170 from 2200, we get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Our division results in 130137.83548387 with a remaining 3e-08.