319964 ÷ 81 
We're looking to find how many times 81 goes into 319964.

Moving on to step 1:
When dividing 3 by 81, we get 0 with a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 3 to get 3.
Grab the next digit (1) from the dividend, add it to 3, then carry on: 31 / 81

Moving on to step 2:
81 can be fit into 31 0 times, resulting in a remainder of 31.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 31 after subtracting 0 from 31.
Grab the next digit (9) from the dividend, add it to 31, then carry on: 319 / 81

On to step 3:
If we divide 319 by 81, we get 3 and a remainder of 76.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
Subtract 243 from 319 to get 76.
Fetch the next digit (9) from the dividend, attach it to 76 and continue: 769 / 81

Advancing to step 4:
81 can be fit into 769 9 times, resulting in a remainder of 40.
Put 9 as the next digit of the answer. 
Result so far: 39.0
If we take 729 away from 769, we end up with 40.
Bring next digit (6) of the dividend behind the 40 and repeat the process: 406 / 81

Advancing to step 5:
If we divide 406 by 81, we get 5 and a remainder of 1.
Write down 5 as next digit of the result. 
Result so far: 395.0
If we take 405 away from 406, we end up with 1.
Take the next digit (4) from the dividend and append it to 1, then repeat: 14 / 81

Moving on to step 6:
81 goes into 14 0 times with a remainder of 14.
The number 0 becomes the next digit in our result. 
Result so far: 3950.0
If we subtract 0 from 14, we get 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Going ahead to step 7:
When dividing 140 by 81, we get 1 with a remainder of 59.
Write down 1 as next digit of the result. 
Result so far: 3950.1
Subtracting 81 from 140 leaves us with 59.
Since there are no more digits in the dividend, we add a zero to the remainder making it 590, and continue the process.

Moving on to step 8:
81 can be fit into 590 7 times, resulting in a remainder of 23.
Write down 7 as next digit of the result. 
Result so far: 3950.17
If we take 567 away from 590, we end up with 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

Going ahead to step 9:
81 goes into 230 2 times with a remainder of 68.
Record the quotient 2 as the next digit in the result. 
Result so far: 3950.172
Subtract 162 from 230 to get 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Let's proceed to step 10:
81 can be fit into 680 8 times, resulting in a remainder of 32.
Write down 8 as next digit of the result. 
Result so far: 3950.1728
If we subtract 648 from 680, we get 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Going ahead to step 11:
When dividing 320 by 81, we get 3 with a remainder of 77.
Write down 3 as next digit of the result. 
Result so far: 3950.17283
Deduct 243 from 320 and we're left with 77.
Since there are no more digits in the dividend, we add a zero to the remainder making it 770, and continue the process.

Step 12:
The number 81 fits into 770 9 times, leaving a remainder of 41.
Write down 9 as next digit of the result. 
Result so far: 3950.172839
If we take 729 away from 770, we end up with 41.
Since there are no more digits in the dividend, we add a zero to the remainder making it 410, and continue the process.

Advancing to step 13:
If we divide 410 by 81, we get 5 and a remainder of 5.
Use 5 as the next digit of our solution. 
Result so far: 3950.1728395
If we take 405 away from 410, we end up with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

On to step 14:
If we divide 50 by 81, we get 0 and a remainder of 50.
Put 0 as the next digit of the answer. 
Result so far: 3950.1728395
Subtract 0 from 50 to get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

The final outcome is 3950.1728395, with a leftover of 5e-08.