We look at the division of 31204275 by 815 
We want to divide 31204275 by 815.

Advancing to step 1:
If we divide 3 by 815, we get 0 and a remainder of 3.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 3 after subtracting 0 from 3.
Take the next digit (1) from the dividend and append it to 3, then repeat: 31 / 815

Moving on to step 2:
815 goes into 31 0 times with a remainder of 31.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 31 and we're left with 31.
Take the next digit (2) from the dividend and append it to 31, then repeat: 312 / 815

Advancing to step 3:
If we divide 312 by 815, we get 0 and a remainder of 312.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 312 and we're left with 312.
Bring next digit (0) of the dividend behind the 312 and repeat the process: 3120 / 815

Step 4:
815 goes into 3120 3 times with a remainder of 675.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
Subtracting 2445 from 3120 leaves us with 675.
Include the next digit (4) from the dividend after 675, then repeat: 6754 / 815

Let's proceed to step 5:
When dividing 6754 by 815, we get 8 with a remainder of 234.
Use 8 as the next digit of our solution. 
Result so far: 38.0
If we subtract 6520 from 6754, we get 234.
Grab the next digit (2) from the dividend, add it to 234, then carry on: 2342 / 815

Step 6:
The number 815 fits into 2342 2 times, leaving a remainder of 712.
Record the quotient 2 as the next digit in the result. 
Result so far: 382.0
The remainder is 712 after subtracting 1630 from 2342.
Grab the next digit (7) from the dividend, add it to 712, then carry on: 7127 / 815

Step 7:
When dividing 7127 by 815, we get 8 with a remainder of 607.
Put 8 as the next digit of the answer. 
Result so far: 3828.0
Subtracting 6520 from 7127 leaves us with 607.
Append the next digit (5) from the dividend to 607 and continue with: 6075 / 815

Going ahead to step 8:
When dividing 6075 by 815, we get 7 with a remainder of 370.
The number 7 becomes the next digit in our result. 
Result so far: 38287.0
The remainder is 370 after subtracting 5705 from 6075.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3700, and continue the process.

Advancing to step 9:
815 goes into 3700 4 times with a remainder of 440.
Put 4 as the next digit of the answer. 
Result so far: 38287.4
If we subtract 3260 from 3700, we get 440.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4400, and continue the process.

Moving on to step 10:
815 can be fit into 4400 5 times, resulting in a remainder of 325.
Use 5 as the next digit of our solution. 
Result so far: 38287.45
If we subtract 4075 from 4400, we get 325.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3250, and continue the process.

Going ahead to step 11:
When dividing 3250 by 815, we get 3 with a remainder of 805.
The next digit of our result is 3. 
Result so far: 38287.453
Deduct 2445 from 3250 and we're left with 805.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8050, and continue the process.

Going ahead to step 12:
If we divide 8050 by 815, we get 9 and a remainder of 715.
Write down 9 as next digit of the result. 
Result so far: 38287.4539
The remainder is 715 after subtracting 7335 from 8050.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7150, and continue the process.

On to step 13:
When dividing 7150 by 815, we get 8 with a remainder of 630.
Write down 8 as next digit of the result. 
Result so far: 38287.45398
Subtracting 6520 from 7150 leaves us with 630.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6300, and continue the process.

Advancing to step 14:
815 can be fit into 6300 7 times, resulting in a remainder of 595.
The number 7 becomes the next digit in our result. 
Result so far: 38287.453987
The remainder is 595 after subtracting 5705 from 6300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5950, and continue the process.

Let's proceed to step 15:
815 goes into 5950 7 times with a remainder of 245.
Record the quotient 7 as the next digit in the result. 
Result so far: 38287.4539877
Deduct 5705 from 5950 and we're left with 245.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2450, and continue the process.

The final result is 38287.4539877 with a remainder of 2.45e-06.