15970893 divided by 729 
The aim is to understand the frequency of 729 in 15970893.

Let's proceed to step 1:
When dividing 1 by 729, we get 0 with a remainder of 1.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 1, we end up with 1.
Append the next digit (5) from the dividend to 1 and continue with: 15 / 729

Going ahead to step 2:
729 can be fit into 15 0 times, resulting in a remainder of 15.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 15, we get 15.
Append the next digit (9) from the dividend to 15 and continue with: 159 / 729

Let's proceed to step 3:
The number 729 fits into 159 0 times, leaving a remainder of 159.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 159, we end up with 159.
Include the next digit (7) from the dividend after 159, then repeat: 1597 / 729

Step 4:
1597 divided by 729 is 2 with a remainder of 139.
The next digit of our result is 2. 
Result so far: 2.0
If we subtract 1458 from 1597, we get 139.
Take the next digit (0) from the dividend and append it to 139, then repeat: 1390 / 729

Going ahead to step 5:
The number 729 fits into 1390 1 times, leaving a remainder of 661.
Use 1 as the next digit of our solution. 
Result so far: 21.0
If we subtract 729 from 1390, we get 661.
Take the next digit (8) from the dividend and append it to 661, then repeat: 6618 / 729

Step 6:
6618 divided by 729 is 9 with a remainder of 57.
Use 9 as the next digit of our solution. 
Result so far: 219.0
The remainder is 57 after subtracting 6561 from 6618.
Take the next digit (9) from the dividend and append it to 57, then repeat: 579 / 729

Step 7:
When dividing 579 by 729, we get 0 with a remainder of 579.
Record the quotient 0 as the next digit in the result. 
Result so far: 2190.0
Subtract 0 from 579 to get 579.
Grab the next digit (3) from the dividend, add it to 579, then carry on: 5793 / 729

Let's proceed to step 8:
729 can be fit into 5793 7 times, resulting in a remainder of 690.
Use 7 as the next digit of our solution. 
Result so far: 21907.0
If we subtract 5103 from 5793, we get 690.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6900, and continue the process.

Moving on to step 9:
729 can be fit into 6900 9 times, resulting in a remainder of 339.
Put 9 as the next digit of the answer. 
Result so far: 21907.9
Subtract 6561 from 6900 to get 339.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3390, and continue the process.

Going ahead to step 10:
When dividing 3390 by 729, we get 4 with a remainder of 474.
Put 4 as the next digit of the answer. 
Result so far: 21907.94
If we subtract 2916 from 3390, we get 474.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4740, and continue the process.

Advancing to step 11:
729 can be fit into 4740 6 times, resulting in a remainder of 366.
Use 6 as the next digit of our solution. 
Result so far: 21907.946
If we subtract 4374 from 4740, we get 366.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3660, and continue the process.

Advancing to step 12:
3660 divided by 729 is 5 with a remainder of 15.
The number 5 becomes the next digit in our result. 
Result so far: 21907.9465
Subtract 3645 from 3660 to get 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Going ahead to step 13:
The number 729 fits into 150 0 times, leaving a remainder of 150.
The next digit of our result is 0. 
Result so far: 21907.9465
If we subtract 0 from 150, we get 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1500, and continue the process.

Moving on to step 14:
729 can be fit into 1500 2 times, resulting in a remainder of 42.
Put 2 as the next digit of the answer. 
Result so far: 21907.946502
Deduct 1458 from 1500 and we're left with 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Going ahead to step 15:
420 divided by 729 is 0 with a remainder of 420.
Use 0 as the next digit of our solution. 
Result so far: 21907.946502
Subtract 0 from 420 to get 420.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4200, and continue the process.

Moving on to step 16:
The number 729 fits into 4200 5 times, leaving a remainder of 555.
Write down 5 as next digit of the result. 
Result so far: 21907.94650205
If we take 3645 away from 4200, we end up with 555.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5550, and continue the process.

In conclusion, the division gives 21907.94650205 with a balance of 5.55e-07.