Let's divide 319870 by 81
We're looking to find how many times 81 goes into 319870.

Step 1:
3 divided by 81 is 0 with a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 3 to get 3.
Append the next digit (1) from the dividend to 3 and continue with: 31 / 81

Going ahead to step 2:
If we divide 31 by 81, we get 0 and a remainder of 31.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 31 and we're left with 31.
Take the next digit (9) from the dividend and append it to 31, then repeat: 319 / 81

Moving on to step 3:
319 divided by 81 is 3 with a remainder of 76.
The next digit of our result is 3. 
Result so far: 3.0
If we take 243 away from 319, we end up with 76.
Bring next digit (8) of the dividend behind the 76 and repeat the process: 768 / 81

Moving on to step 4:
768 divided by 81 is 9 with a remainder of 39.
Put 9 as the next digit of the answer. 
Result so far: 39.0
If we take 729 away from 768, we end up with 39.
Append the next digit (7) from the dividend to 39 and continue with: 397 / 81

Going ahead to step 5:
If we divide 397 by 81, we get 4 and a remainder of 73.
Record the quotient 4 as the next digit in the result. 
Result so far: 394.0
Subtract 324 from 397 to get 73.
Include the next digit (0) from the dividend after 73, then repeat: 730 / 81

Step 6:
If we divide 730 by 81, we get 9 and a remainder of 1.
Put 9 as the next digit of the answer. 
Result so far: 3949.0
Subtract 729 from 730 to get 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Moving on to step 7:
If we divide 10 by 81, we get 0 and a remainder of 10.
The number 0 becomes the next digit in our result. 
Result so far: 3949.0
If we take 0 away from 10, we end up with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Moving on to step 8:
The number 81 fits into 100 1 times, leaving a remainder of 19.
The next digit of our result is 1. 
Result so far: 3949.01
Subtract 81 from 100 to get 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

On to step 9:
81 can be fit into 190 2 times, resulting in a remainder of 28.
The next digit of our result is 2. 
Result so far: 3949.012
If we take 162 away from 190, we end up with 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Moving on to step 10:
81 goes into 280 3 times with a remainder of 37.
The next digit of our result is 3. 
Result so far: 3949.0123
If we take 243 away from 280, we end up with 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

Advancing to step 11:
If we divide 370 by 81, we get 4 and a remainder of 46.
The next digit of our result is 4. 
Result so far: 3949.01234
If we subtract 324 from 370, we get 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

On to step 12:
81 can be fit into 460 5 times, resulting in a remainder of 55.
Use 5 as the next digit of our solution. 
Result so far: 3949.012345
If we subtract 405 from 460, we get 55.
Since there are no more digits in the dividend, we add a zero to the remainder making it 550, and continue the process.

Going ahead to step 13:
The number 81 fits into 550 6 times, leaving a remainder of 64.
Record the quotient 6 as the next digit in the result. 
Result so far: 3949.0123456
Deduct 486 from 550 and we're left with 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Going ahead to step 14:
81 can be fit into 640 7 times, resulting in a remainder of 73.
Write down 7 as next digit of the result. 
Result so far: 3949.01234567
The remainder is 73 after subtracting 567 from 640.
Since there are no more digits in the dividend, we add a zero to the remainder making it 730, and continue the process.

The quotient of the division is 3949.01234567, and the remainder is 7.3e-08.