723859 divided by 54 
The aim is to understand the frequency of 54 in 723859.

Let's proceed to step 1:
When dividing 7 by 54, we get 0 with a remainder of 7.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 7 and we're left with 7.
Fetch the next digit (2) from the dividend, attach it to 7 and continue: 72 / 54

Moving on to step 2:
72 divided by 54 is 1 with a remainder of 18.
The next digit of our result is 1. 
Result so far: 1.0
Subtract 54 from 72 to get 18.
Include the next digit (3) from the dividend after 18, then repeat: 183 / 54

Let's proceed to step 3:
183 divided by 54 is 3 with a remainder of 21.
Record the quotient 3 as the next digit in the result. 
Result so far: 13.0
Subtracting 162 from 183 leaves us with 21.
Fetch the next digit (8) from the dividend, attach it to 21 and continue: 218 / 54

On to step 4:
The number 54 fits into 218 4 times, leaving a remainder of 2.
Write down 4 as next digit of the result. 
Result so far: 134.0
Deduct 216 from 218 and we're left with 2.
Append the next digit (5) from the dividend to 2 and continue with: 25 / 54

Going ahead to step 5:
25 divided by 54 is 0 with a remainder of 25.
Write down 0 as next digit of the result. 
Result so far: 1340.0
Deduct 0 from 25 and we're left with 25.
Take the next digit (9) from the dividend and append it to 25, then repeat: 259 / 54

On to step 6:
When dividing 259 by 54, we get 4 with a remainder of 43.
The next digit of our result is 4. 
Result so far: 13404.0
If we subtract 216 from 259, we get 43.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

On to step 7:
54 can be fit into 430 7 times, resulting in a remainder of 52.
The next digit of our result is 7. 
Result so far: 13404.7
If we take 378 away from 430, we end up with 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Step 8:
If we divide 520 by 54, we get 9 and a remainder of 34.
Use 9 as the next digit of our solution. 
Result so far: 13404.79
Subtract 486 from 520 to get 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Let's proceed to step 9:
If we divide 340 by 54, we get 6 and a remainder of 16.
Use 6 as the next digit of our solution. 
Result so far: 13404.796
Subtract 324 from 340 to get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Going ahead to step 10:
54 can be fit into 160 2 times, resulting in a remainder of 52.
Write down 2 as next digit of the result. 
Result so far: 13404.7962
Subtracting 108 from 160 leaves us with 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

On to step 11:
If we divide 520 by 54, we get 9 and a remainder of 34.
Record the quotient 9 as the next digit in the result. 
Result so far: 13404.79629
Deduct 486 from 520 and we're left with 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

On to step 12:
When dividing 340 by 54, we get 6 with a remainder of 16.
Use 6 as the next digit of our solution. 
Result so far: 13404.796296
Subtract 324 from 340 to get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Step 13:
When dividing 160 by 54, we get 2 with a remainder of 52.
Use 2 as the next digit of our solution. 
Result so far: 13404.7962962
Subtracting 108 from 160 leaves us with 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Advancing to step 14:
54 goes into 520 9 times with a remainder of 34.
The next digit of our result is 9. 
Result so far: 13404.79629629
Subtract 486 from 520 to get 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Our division results in 13404.79629629 with a remaining 3.4e-08.