We look at the division of 10423966 by 729 
The aim is to understand the frequency of 729 in 10423966.

On to step 1:
729 goes into 1 0 times with a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Fetch the next digit (0) from the dividend, attach it to 1 and continue: 10 / 729

Step 2:
729 goes into 10 0 times with a remainder of 10.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 10 to get 10.
Bring next digit (4) of the dividend behind the 10 and repeat the process: 104 / 729

Moving on to step 3:
729 can be fit into 104 0 times, resulting in a remainder of 104.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 104, we end up with 104.
Fetch the next digit (2) from the dividend, attach it to 104 and continue: 1042 / 729

On to step 4:
When dividing 1042 by 729, we get 1 with a remainder of 313.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtract 729 from 1042 to get 313.
Grab the next digit (3) from the dividend, add it to 313, then carry on: 3133 / 729

Step 5:
729 goes into 3133 4 times with a remainder of 217.
The next digit of our result is 4. 
Result so far: 14.0
Deduct 2916 from 3133 and we're left with 217.
Append the next digit (9) from the dividend to 217 and continue with: 2179 / 729

Moving on to step 6:
If we divide 2179 by 729, we get 2 and a remainder of 721.
Use 2 as the next digit of our solution. 
Result so far: 142.0
The remainder is 721 after subtracting 1458 from 2179.
Fetch the next digit (6) from the dividend, attach it to 721 and continue: 7216 / 729

Let's proceed to step 7:
The number 729 fits into 7216 9 times, leaving a remainder of 655.
Put 9 as the next digit of the answer. 
Result so far: 1429.0
Subtract 6561 from 7216 to get 655.
Fetch the next digit (6) from the dividend, attach it to 655 and continue: 6556 / 729

Let's proceed to step 8:
If we divide 6556 by 729, we get 8 and a remainder of 724.
Write down 8 as next digit of the result. 
Result so far: 14298.0
Subtract 5832 from 6556 to get 724.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7240, and continue the process.

Moving on to step 9:
The number 729 fits into 7240 9 times, leaving a remainder of 679.
The next digit of our result is 9. 
Result so far: 14298.9
Subtract 6561 from 7240 to get 679.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6790, and continue the process.

Going ahead to step 10:
When dividing 6790 by 729, we get 9 with a remainder of 229.
Use 9 as the next digit of our solution. 
Result so far: 14298.99
Subtracting 6561 from 6790 leaves us with 229.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2290, and continue the process.

Our division results in 14298.99 with a remaining 0.229.