We look at the division of 391453 by 54 
The aim is to understand the frequency of 54 in 391453.

Let's proceed to step 1:
The number 54 fits into 3 0 times, leaving a remainder of 3.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 3, we get 3.
Grab the next digit (9) from the dividend, add it to 3, then carry on: 39 / 54

Going ahead to step 2:
39 divided by 54 is 0 with a remainder of 39.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 39, we get 39.
Bring next digit (1) of the dividend behind the 39 and repeat the process: 391 / 54

Going ahead to step 3:
54 goes into 391 7 times with a remainder of 13.
Record the quotient 7 as the next digit in the result. 
Result so far: 7.0
If we subtract 378 from 391, we get 13.
Grab the next digit (4) from the dividend, add it to 13, then carry on: 134 / 54

On to step 4:
The number 54 fits into 134 2 times, leaving a remainder of 26.
Write down 2 as next digit of the result. 
Result so far: 72.0
Deduct 108 from 134 and we're left with 26.
Bring next digit (5) of the dividend behind the 26 and repeat the process: 265 / 54

Step 5:
The number 54 fits into 265 4 times, leaving a remainder of 49.
Put 4 as the next digit of the answer. 
Result so far: 724.0
Deduct 216 from 265 and we're left with 49.
Fetch the next digit (3) from the dividend, attach it to 49 and continue: 493 / 54

Going ahead to step 6:
54 can be fit into 493 9 times, resulting in a remainder of 7.
Put 9 as the next digit of the answer. 
Result so far: 7249.0
Deduct 486 from 493 and we're left with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Advancing to step 7:
54 goes into 70 1 times with a remainder of 16.
Record the quotient 1 as the next digit in the result. 
Result so far: 7249.1
If we subtract 54 from 70, we 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.

Moving on to step 8:
If we divide 160 by 54, we get 2 and a remainder of 52.
The next digit of our result is 2. 
Result so far: 7249.12
The remainder is 52 after subtracting 108 from 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Step 9:
The number 54 fits into 520 9 times, leaving a remainder of 34.
Record the quotient 9 as the next digit in the result. 
Result so far: 7249.129
If we subtract 486 from 520, we 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.

Step 10:
The number 54 fits into 340 6 times, leaving a remainder of 16.
The next digit of our result is 6. 
Result so far: 7249.1296
Deduct 324 from 340 and we're left with 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 11:
54 can be fit into 160 2 times, resulting in a remainder of 52.
Use 2 as the next digit of our solution. 
Result so far: 7249.12962
Subtract 108 from 160 to get 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 12:
54 can be fit into 520 9 times, resulting in a remainder of 34.
The number 9 becomes the next digit in our result. 
Result so far: 7249.129629
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 13:
54 can be fit into 340 6 times, resulting in a remainder of 16.
The next digit of our result is 6. 
Result so far: 7249.1296296
The remainder is 16 after subtracting 324 from 340.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Moving on to step 14:
When dividing 160 by 54, we get 2 with a remainder of 52.
The number 2 becomes the next digit in our result. 
Result so far: 7249.12962962
Deduct 108 from 160 and we're left 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.

In conclusion, the division gives 7249.12962962 with a balance of 5.2e-08.