We're dividing 71978973 by 729 
We want to divide 71978973 by 729.

Advancing to step 1:
The number 729 fits into 7 0 times, leaving a remainder of 7.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 7 leaves us with 7.
Take the next digit (1) from the dividend and append it to 7, then repeat: 71 / 729

Advancing to step 2:
71 divided by 729 is 0 with a remainder of 71.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 71 after subtracting 0 from 71.
Bring next digit (9) of the dividend behind the 71 and repeat the process: 719 / 729

Step 3:
When dividing 719 by 729, we get 0 with a remainder of 719.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 719 after subtracting 0 from 719.
Bring next digit (7) of the dividend behind the 719 and repeat the process: 7197 / 729

Going ahead to step 4:
729 can be fit into 7197 9 times, resulting in a remainder of 636.
Record the quotient 9 as the next digit in the result. 
Result so far: 9.0
Subtract 6561 from 7197 to get 636.
Grab the next digit (8) from the dividend, add it to 636, then carry on: 6368 / 729

On to step 5:
6368 divided by 729 is 8 with a remainder of 536.
Put 8 as the next digit of the answer. 
Result so far: 98.0
The remainder is 536 after subtracting 5832 from 6368.
Take the next digit (9) from the dividend and append it to 536, then repeat: 5369 / 729

Moving on to step 6:
729 goes into 5369 7 times with a remainder of 266.
The number 7 becomes the next digit in our result. 
Result so far: 987.0
Deduct 5103 from 5369 and we're left with 266.
Include the next digit (7) from the dividend after 266, then repeat: 2667 / 729

Advancing to step 7:
2667 divided by 729 is 3 with a remainder of 480.
Put 3 as the next digit of the answer. 
Result so far: 9873.0
Subtract 2187 from 2667 to get 480.
Append the next digit (3) from the dividend to 480 and continue with: 4803 / 729

Step 8:
The number 729 fits into 4803 6 times, leaving a remainder of 429.
Write down 6 as next digit of the result. 
Result so far: 98736.0
Subtract 4374 from 4803 to get 429.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4290, and continue the process.

Going ahead to step 9:
4290 divided by 729 is 5 with a remainder of 645.
Write down 5 as next digit of the result. 
Result so far: 98736.5
Subtracting 3645 from 4290 leaves us with 645.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6450, and continue the process.

Moving on to step 10:
6450 divided by 729 is 8 with a remainder of 618.
Write down 8 as next digit of the result. 
Result so far: 98736.58
Deduct 5832 from 6450 and we're left with 618.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6180, and continue the process.

Advancing to step 11:
729 can be fit into 6180 8 times, resulting in a remainder of 348.
Put 8 as the next digit of the answer. 
Result so far: 98736.588
If we take 5832 away from 6180, we end up with 348.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3480, and continue the process.

After the division, we end up with 98736.588 and a remainder of 0.0348.