310903 divided by 81 
We want to divide 310903 by 81.

Moving on to step 1:
81 goes into 3 0 times with a remainder of 3.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 3 to get 3.
Bring next digit (1) of the dividend behind the 3 and repeat the process: 31 / 81

Step 2:
31 divided by 81 is 0 with a remainder of 31.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 31 leaves us with 31.
Grab the next digit (0) from the dividend, add it to 31, then carry on: 310 / 81

Moving on to step 3:
81 goes into 310 3 times with a remainder of 67.
Put 3 as the next digit of the answer. 
Result so far: 3.0
Subtracting 243 from 310 leaves us with 67.
Append the next digit (9) from the dividend to 67 and continue with: 679 / 81

Let's proceed to step 4:
If we divide 679 by 81, we get 8 and a remainder of 31.
The next digit of our result is 8. 
Result so far: 38.0
Subtract 648 from 679 to get 31.
Include the next digit (0) from the dividend after 31, then repeat: 310 / 81

Moving on to step 5:
When dividing 310 by 81, we get 3 with a remainder of 67.
The next digit of our result is 3. 
Result so far: 383.0
If we take 243 away from 310, we end up with 67.
Bring next digit (3) of the dividend behind the 67 and repeat the process: 673 / 81

Moving on to step 6:
673 divided by 81 is 8 with a remainder of 25.
Put 8 as the next digit of the answer. 
Result so far: 3838.0
Subtracting 648 from 673 leaves us with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

On to step 7:
If we divide 250 by 81, we get 3 and a remainder of 7.
Record the quotient 3 as the next digit in the result. 
Result so far: 3838.3
If we take 243 away from 250, we end up with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Let's proceed to step 8:
If we divide 70 by 81, we get 0 and a remainder of 70.
Use 0 as the next digit of our solution. 
Result so far: 3838.3
Subtracting 0 from 70 leaves us with 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Advancing to step 9:
81 goes into 700 8 times with a remainder of 52.
The next digit of our result is 8. 
Result so far: 3838.308
Subtracting 648 from 700 leaves us with 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Advancing to step 10:
If we divide 520 by 81, we get 6 and a remainder of 34.
Use 6 as the next digit of our solution. 
Result so far: 3838.3086
The remainder is 34 after subtracting 486 from 520.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Moving on to step 11:
If we divide 340 by 81, we get 4 and a remainder of 16.
The next digit of our result is 4. 
Result so far: 3838.30864
Deduct 324 from 340 and we're left with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

On to step 12:
81 goes into 160 1 times with a remainder of 79.
Use 1 as the next digit of our solution. 
Result so far: 3838.308641
The remainder is 79 after subtracting 81 from 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 790, and continue the process.

Advancing to step 13:
The number 81 fits into 790 9 times, leaving a remainder of 61.
Put 9 as the next digit of the answer. 
Result so far: 3838.3086419
Deduct 729 from 790 and we're left with 61.
Since there are no more digits in the dividend, we add a zero to the remainder making it 610, and continue the process.

Moving on to step 14:
81 goes into 610 7 times with a remainder of 43.
Put 7 as the next digit of the answer. 
Result so far: 3838.30864197
If we subtract 567 from 610, we get 43.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

The quotient of the division is 3838.30864197, and the remainder is 4.3e-08.