Let's divide 783984 by 81
We're looking to find how many times 81 goes into 783984.

Advancing to step 1:
81 can be fit into 7 0 times, resulting in a remainder of 7.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 7 after subtracting 0 from 7.
Grab the next digit (8) from the dividend, add it to 7, then carry on: 78 / 81

On to step 2:
81 can be fit into 78 0 times, resulting in a remainder of 78.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 78 to get 78.
Append the next digit (3) from the dividend to 78 and continue with: 783 / 81

Step 3:
When dividing 783 by 81, we get 9 with a remainder of 54.
Write down 9 as next digit of the result. 
Result so far: 9.0
Deduct 729 from 783 and we're left with 54.
Take the next digit (9) from the dividend and append it to 54, then repeat: 549 / 81

Going ahead to step 4:
When dividing 549 by 81, we get 6 with a remainder of 63.
Record the quotient 6 as the next digit in the result. 
Result so far: 96.0
If we take 486 away from 549, we end up with 63.
Fetch the next digit (8) from the dividend, attach it to 63 and continue: 638 / 81

Moving on to step 5:
81 goes into 638 7 times with a remainder of 71.
The next digit of our result is 7. 
Result so far: 967.0
If we take 567 away from 638, we end up with 71.
Include the next digit (4) from the dividend after 71, then repeat: 714 / 81

On to step 6:
When dividing 714 by 81, we get 8 with a remainder of 66.
Record the quotient 8 as the next digit in the result. 
Result so far: 9678.0
If we subtract 648 from 714, we get 66.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

On to step 7:
81 can be fit into 660 8 times, resulting in a remainder of 12.
Record the quotient 8 as the next digit in the result. 
Result so far: 9678.8
Subtract 648 from 660 to get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Moving on to step 8:
120 divided by 81 is 1 with a remainder of 39.
Use 1 as the next digit of our solution. 
Result so far: 9678.81
If we subtract 81 from 120, we get 39.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

Let's proceed to step 9:
390 divided by 81 is 4 with a remainder of 66.
The next digit of our result is 4. 
Result so far: 9678.814
Subtracting 324 from 390 leaves us with 66.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

Step 10:
When dividing 660 by 81, we get 8 with a remainder of 12.
Put 8 as the next digit of the answer. 
Result so far: 9678.8148
Deduct 648 from 660 and we're left with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Moving on to step 11:
If we divide 120 by 81, we get 1 and a remainder of 39.
The number 1 becomes the next digit in our result. 
Result so far: 9678.81481
Subtract 81 from 120 to get 39.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

Step 12:
If we divide 390 by 81, we get 4 and a remainder of 66.
The number 4 becomes the next digit in our result. 
Result so far: 9678.814814
Subtracting 324 from 390 leaves us with 66.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

Moving on to step 13:
If we divide 660 by 81, we get 8 and a remainder of 12.
Use 8 as the next digit of our solution. 
Result so far: 9678.8148148
Subtracting 648 from 660 leaves us with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Going ahead to step 14:
The number 81 fits into 120 1 times, leaving a remainder of 39.
The number 1 becomes the next digit in our result. 
Result so far: 9678.81481481
If we take 81 away from 120, we end up with 39.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

The final result is 9678.81481481 with a remainder of 3.9e-08.