We're dividing 78591466 by 729 
The aim is to understand the frequency of 729 in 78591466.

Step 1:
When dividing 7 by 729, we get 0 with a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 7, we get 7.
Bring next digit (8) of the dividend behind the 7 and repeat the process: 78 / 729

Let's proceed to step 2:
729 goes into 78 0 times with a remainder of 78.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 78 after subtracting 0 from 78.
Append the next digit (5) from the dividend to 78 and continue with: 785 / 729

Going ahead to step 3:
729 goes into 785 1 times with a remainder of 56.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtracting 729 from 785 leaves us with 56.
Grab the next digit (9) from the dividend, add it to 56, then carry on: 569 / 729

Advancing to step 4:
When dividing 569 by 729, we get 0 with a remainder of 569.
The number 0 becomes the next digit in our result. 
Result so far: 10.0
Deduct 0 from 569 and we're left with 569.
Append the next digit (1) from the dividend to 569 and continue with: 5691 / 729

Let's proceed to step 5:
5691 divided by 729 is 7 with a remainder of 588.
Record the quotient 7 as the next digit in the result. 
Result so far: 107.0
Subtract 5103 from 5691 to get 588.
Append the next digit (4) from the dividend to 588 and continue with: 5884 / 729

Step 6:
When dividing 5884 by 729, we get 8 with a remainder of 52.
Put 8 as the next digit of the answer. 
Result so far: 1078.0
If we subtract 5832 from 5884, we get 52.
Fetch the next digit (6) from the dividend, attach it to 52 and continue: 526 / 729

Step 7:
729 can be fit into 526 0 times, resulting in a remainder of 526.
Put 0 as the next digit of the answer. 
Result so far: 10780.0
The remainder is 526 after subtracting 0 from 526.
Fetch the next digit (6) from the dividend, attach it to 526 and continue: 5266 / 729

Let's proceed to step 8:
If we divide 5266 by 729, we get 7 and a remainder of 163.
Put 7 as the next digit of the answer. 
Result so far: 107807.0
Deduct 5103 from 5266 and we're left with 163.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1630, and continue the process.

On to step 9:
The number 729 fits into 1630 2 times, leaving a remainder of 172.
The number 2 becomes the next digit in our result. 
Result so far: 107807.2
If we take 1458 away from 1630, we end up with 172.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1720, and continue the process.

Going ahead to step 10:
If we divide 1720 by 729, we get 2 and a remainder of 262.
Record the quotient 2 as the next digit in the result. 
Result so far: 107807.22
Subtract 1458 from 1720 to get 262.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2620, and continue the process.

Our division results in 107807.22 with a remaining 0.262.