We're dividing 51384999 by 729 
We want to figure out the number of times 51384999 can be divided by 729.

Let's proceed to step 1:
The number 729 fits into 5 0 times, leaving a remainder of 5.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 5 after subtracting 0 from 5.
Fetch the next digit (1) from the dividend, attach it to 5 and continue: 51 / 729

Step 2:
If we divide 51 by 729, we get 0 and a remainder of 51.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 51 and we're left with 51.
Include the next digit (3) from the dividend after 51, then repeat: 513 / 729

On to step 3:
513 divided by 729 is 0 with a remainder of 513.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 513 after subtracting 0 from 513.
Take the next digit (8) from the dividend and append it to 513, then repeat: 5138 / 729

Step 4:
If we divide 5138 by 729, we get 7 and a remainder of 35.
The next digit of our result is 7. 
Result so far: 7.0
Subtract 5103 from 5138 to get 35.
Append the next digit (4) from the dividend to 35 and continue with: 354 / 729

Let's proceed to step 5:
729 goes into 354 0 times with a remainder of 354.
Put 0 as the next digit of the answer. 
Result so far: 70.0
Deduct 0 from 354 and we're left with 354.
Bring next digit (9) of the dividend behind the 354 and repeat the process: 3549 / 729

Moving on to step 6:
If we divide 3549 by 729, we get 4 and a remainder of 633.
Record the quotient 4 as the next digit in the result. 
Result so far: 704.0
The remainder is 633 after subtracting 2916 from 3549.
Include the next digit (9) from the dividend after 633, then repeat: 6339 / 729

Going ahead to step 7:
729 goes into 6339 8 times with a remainder of 507.
The number 8 becomes the next digit in our result. 
Result so far: 7048.0
If we subtract 5832 from 6339, we get 507.
Fetch the next digit (9) from the dividend, attach it to 507 and continue: 5079 / 729

Going ahead to step 8:
729 goes into 5079 6 times with a remainder of 705.
Use 6 as the next digit of our solution. 
Result so far: 70486.0
Subtract 4374 from 5079 to get 705.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7050, and continue the process.

Advancing to step 9:
When dividing 7050 by 729, we get 9 with a remainder of 489.
Use 9 as the next digit of our solution. 
Result so far: 70486.9
Subtracting 6561 from 7050 leaves us with 489.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4890, and continue the process.

Advancing to step 10:
When dividing 4890 by 729, we get 6 with a remainder of 516.
Write down 6 as next digit of the result. 
Result so far: 70486.96
Subtracting 4374 from 4890 leaves us with 516.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5160, and continue the process.

Going ahead to step 11:
5160 divided by 729 is 7 with a remainder of 57.
Put 7 as the next digit of the answer. 
Result so far: 70486.967
Deduct 5103 from 5160 and we're left with 57.
Since there are no more digits in the dividend, we add a zero to the remainder making it 570, and continue the process.

Going ahead to step 12:
729 can be fit into 570 0 times, resulting in a remainder of 570.
The number 0 becomes the next digit in our result. 
Result so far: 70486.967
Deduct 0 from 570 and we're left with 570.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5700, and continue the process.

Moving on to step 13:
5700 divided by 729 is 7 with a remainder of 597.
The number 7 becomes the next digit in our result. 
Result so far: 70486.96707
The remainder is 597 after subtracting 5103 from 5700.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5970, and continue the process.

Going ahead to step 14:
5970 divided by 729 is 8 with a remainder of 138.
The number 8 becomes the next digit in our result. 
Result so far: 70486.967078
Subtracting 5832 from 5970 leaves us with 138.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1380, and continue the process.

Moving on to step 15:
1380 divided by 729 is 1 with a remainder of 651.
Record the quotient 1 as the next digit in the result. 
Result so far: 70486.9670781
The remainder is 651 after subtracting 729 from 1380.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6510, and continue the process.

Advancing to step 16:
When dividing 6510 by 729, we get 8 with a remainder of 678.
The next digit of our result is 8. 
Result so far: 70486.96707818
If we take 5832 away from 6510, we end up with 678.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6780, and continue the process.

After the division, we end up with 70486.96707818 and a remainder of 6.78e-07.