39403575 ÷ 310 
We want to divide 39403575 by 310.

Going ahead to step 1:
310 can be fit into 3 0 times, resulting in a remainder of 3.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 3, we get 3.
Fetch the next digit (9) from the dividend, attach it to 3 and continue: 39 / 310

Step 2:
If we divide 39 by 310, we get 0 and a remainder of 39.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 39, we get 39.
Take the next digit (4) from the dividend and append it to 39, then repeat: 394 / 310

On to step 3:
The number 310 fits into 394 1 times, leaving a remainder of 84.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtract 310 from 394 to get 84.
Bring next digit (0) of the dividend behind the 84 and repeat the process: 840 / 310

Going ahead to step 4:
If we divide 840 by 310, we get 2 and a remainder of 220.
The next digit of our result is 2. 
Result so far: 12.0
Subtract 620 from 840 to get 220.
Fetch the next digit (3) from the dividend, attach it to 220 and continue: 2203 / 310

Moving on to step 5:
When dividing 2203 by 310, we get 7 with a remainder of 33.
The number 7 becomes the next digit in our result. 
Result so far: 127.0
The remainder is 33 after subtracting 2170 from 2203.
Include the next digit (5) from the dividend after 33, then repeat: 335 / 310

Going ahead to step 6:
If we divide 335 by 310, we get 1 and a remainder of 25.
Put 1 as the next digit of the answer. 
Result so far: 1271.0
If we subtract 310 from 335, we get 25.
Fetch the next digit (7) from the dividend, attach it to 25 and continue: 257 / 310

Step 7:
The number 310 fits into 257 0 times, leaving a remainder of 257.
The next digit of our result is 0. 
Result so far: 12710.0
Subtract 0 from 257 to get 257.
Fetch the next digit (5) from the dividend, attach it to 257 and continue: 2575 / 310

Going ahead to step 8:
When dividing 2575 by 310, we get 8 with a remainder of 95.
Use 8 as the next digit of our solution. 
Result so far: 127108.0
Subtracting 2480 from 2575 leaves us with 95.
Since there are no more digits in the dividend, we add a zero to the remainder making it 950, and continue the process.

Going ahead to step 9:
950 divided by 310 is 3 with a remainder of 20.
The next digit of our result is 3. 
Result so far: 127108.3
Subtracting 930 from 950 leaves us with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Step 10:
If we divide 200 by 310, we get 0 and a remainder of 200.
Write down 0 as next digit of the result. 
Result so far: 127108.3
Subtracting 0 from 200 leaves us with 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

Going ahead to step 11:
2000 divided by 310 is 6 with a remainder of 140.
Use 6 as the next digit of our solution. 
Result so far: 127108.306
If we take 1860 away from 2000, we end up with 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1400, and continue the process.

Step 12:
The number 310 fits into 1400 4 times, leaving a remainder of 160.
Write down 4 as next digit of the result. 
Result so far: 127108.3064
Deduct 1240 from 1400 and we're left with 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

Step 13:
310 goes into 1600 5 times with a remainder of 50.
Use 5 as the next digit of our solution. 
Result so far: 127108.30645
The remainder is 50 after subtracting 1550 from 1600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Advancing to step 14:
310 goes into 500 1 times with a remainder of 190.
The next digit of our result is 1. 
Result so far: 127108.306451
If we take 310 away from 500, we end up with 190.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1900, and continue the process.

Let's proceed to step 15:
When dividing 1900 by 310, we get 6 with a remainder of 40.
Put 6 as the next digit of the answer. 
Result so far: 127108.3064516
The remainder is 40 after subtracting 1860 from 1900.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

On to step 16:
When dividing 400 by 310, we get 1 with a remainder of 90.
Use 1 as the next digit of our solution. 
Result so far: 127108.30645161
Subtract 310 from 400 to get 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 900, and continue the process.

The quotient of the division is 127108.30645161, and the remainder is 9e-08.