We're dividing 54252589 by 729 
The aim is to understand the frequency of 729 in 54252589.

Advancing to step 1:
If we divide 5 by 729, we get 0 and a remainder of 5.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 5 leaves us with 5.
Fetch the next digit (4) from the dividend, attach it to 5 and continue: 54 / 729

Moving on to step 2:
If we divide 54 by 729, we get 0 and a remainder of 54.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 54 and we're left with 54.
Take the next digit (2) from the dividend and append it to 54, then repeat: 542 / 729

Step 3:
542 divided by 729 is 0 with a remainder of 542.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 542 leaves us with 542.
Append the next digit (5) from the dividend to 542 and continue with: 5425 / 729

On to step 4:
729 goes into 5425 7 times with a remainder of 322.
Record the quotient 7 as the next digit in the result. 
Result so far: 7.0
Subtract 5103 from 5425 to get 322.
Bring next digit (2) of the dividend behind the 322 and repeat the process: 3222 / 729

Going ahead to step 5:
3222 divided by 729 is 4 with a remainder of 306.
Put 4 as the next digit of the answer. 
Result so far: 74.0
Deduct 2916 from 3222 and we're left with 306.
Take the next digit (5) from the dividend and append it to 306, then repeat: 3065 / 729

Advancing to step 6:
3065 divided by 729 is 4 with a remainder of 149.
The next digit of our result is 4. 
Result so far: 744.0
Subtracting 2916 from 3065 leaves us with 149.
Take the next digit (8) from the dividend and append it to 149, then repeat: 1498 / 729

Let's proceed to step 7:
The number 729 fits into 1498 2 times, leaving a remainder of 40.
Put 2 as the next digit of the answer. 
Result so far: 7442.0
If we take 1458 away from 1498, we end up with 40.
Grab the next digit (9) from the dividend, add it to 40, then carry on: 409 / 729

Step 8:
409 divided by 729 is 0 with a remainder of 409.
Write down 0 as next digit of the result. 
Result so far: 74420.0
If we subtract 0 from 409, we get 409.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4090, and continue the process.

Advancing to step 9:
When dividing 4090 by 729, we get 5 with a remainder of 445.
The number 5 becomes the next digit in our result. 
Result so far: 74420.5
Subtracting 3645 from 4090 leaves us with 445.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4450, and continue the process.

Step 10:
729 can be fit into 4450 6 times, resulting in a remainder of 76.
Record the quotient 6 as the next digit in the result. 
Result so far: 74420.56
Deduct 4374 from 4450 and we're left with 76.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

Going ahead to step 11:
If we divide 760 by 729, we get 1 and a remainder of 31.
Write down 1 as next digit of the result. 
Result so far: 74420.561
If we subtract 729 from 760, we get 31.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

Moving on to step 12:
If we divide 310 by 729, we get 0 and a remainder of 310.
Put 0 as the next digit of the answer. 
Result so far: 74420.561
Deduct 0 from 310 and we're left with 310.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3100, and continue the process.

Step 13:
If we divide 3100 by 729, we get 4 and a remainder of 184.
Write down 4 as next digit of the result. 
Result so far: 74420.56104
Deduct 2916 from 3100 and we're left with 184.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1840, and continue the process.

Advancing to step 14:
The number 729 fits into 1840 2 times, leaving a remainder of 382.
Use 2 as the next digit of our solution. 
Result so far: 74420.561042
If we take 1458 away from 1840, we end up with 382.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3820, and continue the process.

Step 15:
When dividing 3820 by 729, we get 5 with a remainder of 175.
Write down 5 as next digit of the result. 
Result so far: 74420.5610425
Subtracting 3645 from 3820 leaves us with 175.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1750, and continue the process.

Going ahead to step 16:
729 goes into 1750 2 times with a remainder of 292.
Use 2 as the next digit of our solution. 
Result so far: 74420.56104252
Subtract 1458 from 1750 to get 292.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2920, and continue the process.

The final result is 74420.56104252 with a remainder of 2.92e-07.