We look at the division of 31721790 by 310 
We want to divide 31721790 by 310.

Moving on to step 1:
When dividing 3 by 310, we get 0 with a remainder of 3.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 3, we get 3.
Grab the next digit (1) from the dividend, add it to 3, then carry on: 31 / 310

Let's proceed to step 2:
310 can be fit into 31 0 times, resulting in a remainder of 31.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 31 after subtracting 0 from 31.
Bring next digit (7) of the dividend behind the 31 and repeat the process: 317 / 310

Going ahead to step 3:
If we divide 317 by 310, we get 1 and a remainder of 7.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
The remainder is 7 after subtracting 310 from 317.
Fetch the next digit (2) from the dividend, attach it to 7 and continue: 72 / 310

Advancing to step 4:
If we divide 72 by 310, we get 0 and a remainder of 72.
Write down 0 as next digit of the result. 
Result so far: 10.0
Deduct 0 from 72 and we're left with 72.
Take the next digit (1) from the dividend and append it to 72, then repeat: 721 / 310

Moving on to step 5:
310 can be fit into 721 2 times, resulting in a remainder of 101.
The number 2 becomes the next digit in our result. 
Result so far: 102.0
Deduct 620 from 721 and we're left with 101.
Take the next digit (7) from the dividend and append it to 101, then repeat: 1017 / 310

Going ahead to step 6:
1017 divided by 310 is 3 with a remainder of 87.
The next digit of our result is 3. 
Result so far: 1023.0
Deduct 930 from 1017 and we're left with 87.
Grab the next digit (9) from the dividend, add it to 87, then carry on: 879 / 310

Step 7:
When dividing 879 by 310, we get 2 with a remainder of 259.
The number 2 becomes the next digit in our result. 
Result so far: 10232.0
The remainder is 259 after subtracting 620 from 879.
Take the next digit (0) from the dividend and append it to 259, then repeat: 2590 / 310

Going ahead to step 8:
310 goes into 2590 8 times with a remainder of 110.
Use 8 as the next digit of our solution. 
Result so far: 102328.0
The remainder is 110 after subtracting 2480 from 2590.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1100, and continue the process.

On to step 9:
The number 310 fits into 1100 3 times, leaving a remainder of 170.
Write down 3 as next digit of the result. 
Result so far: 102328.3
If we subtract 930 from 1100, we get 170.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1700, and continue the process.

Step 10:
When dividing 1700 by 310, we get 5 with a remainder of 150.
Put 5 as the next digit of the answer. 
Result so far: 102328.35
Subtracting 1550 from 1700 leaves us 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.

On to step 11:
When dividing 1500 by 310, we get 4 with a remainder of 260.
The number 4 becomes the next digit in our result. 
Result so far: 102328.354
Subtracting 1240 from 1500 leaves us 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.

Moving on to step 12:
If we divide 2600 by 310, we get 8 and a remainder of 120.
Put 8 as the next digit of the answer. 
Result so far: 102328.3548
The remainder is 120 after subtracting 2480 from 2600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

On to step 13:
1200 divided by 310 is 3 with a remainder of 270.
Write down 3 as next digit of the result. 
Result so far: 102328.35483
If we subtract 930 from 1200, we 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.

Advancing to step 14:
310 goes into 2700 8 times with a remainder of 220.
Put 8 as the next digit of the answer. 
Result so far: 102328.354838
If we subtract 2480 from 2700, we 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.

On to step 15:
2200 divided by 310 is 7 with a remainder of 30.
The next digit of our result is 7. 
Result so far: 102328.3548387
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.

On to step 16:
The number 310 fits into 300 0 times, leaving a remainder of 300.
Write down 0 as next digit of the result. 
Result so far: 102328.3548387
If we subtract 0 from 300, we get 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3000, and continue the process.

Our division results in 102328.3548387 with a remaining 3e-07.