We look at the division of 123091 by 54 
The aim is to understand the frequency of 54 in 123091.

Moving on to step 1:
When dividing 1 by 54, we get 0 with a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Take the next digit (2) from the dividend and append it to 1, then repeat: 12 / 54

Step 2:
12 divided by 54 is 0 with a remainder of 12.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 12, we end up with 12.
Grab the next digit (3) from the dividend, add it to 12, then carry on: 123 / 54

Moving on to step 3:
When dividing 123 by 54, we get 2 with a remainder of 15.
The next digit of our result is 2. 
Result so far: 2.0
If we take 108 away from 123, we end up with 15.
Include the next digit (0) from the dividend after 15, then repeat: 150 / 54

Going ahead to step 4:
150 divided by 54 is 2 with a remainder of 42.
Use 2 as the next digit of our solution. 
Result so far: 22.0
Deduct 108 from 150 and we're left with 42.
Bring next digit (9) of the dividend behind the 42 and repeat the process: 429 / 54

On to step 5:
54 goes into 429 7 times with a remainder of 51.
Use 7 as the next digit of our solution. 
Result so far: 227.0
If we subtract 378 from 429, we get 51.
Grab the next digit (1) from the dividend, add it to 51, then carry on: 511 / 54

Step 6:
511 divided by 54 is 9 with a remainder of 25.
Write down 9 as next digit of the result. 
Result so far: 2279.0
Subtract 486 from 511 to get 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Let's proceed to step 7:
The number 54 fits into 250 4 times, leaving a remainder of 34.
The number 4 becomes the next digit in our result. 
Result so far: 2279.4
If we subtract 216 from 250, 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.

Moving on to step 8:
If we divide 340 by 54, we get 6 and a remainder of 16.
The number 6 becomes the next digit in our result. 
Result so far: 2279.46
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.

Advancing to step 9:
The number 54 fits into 160 2 times, leaving a remainder of 52.
Record the quotient 2 as the next digit in the result. 
Result so far: 2279.462
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.

On to step 10:
54 can be fit into 520 9 times, resulting in a remainder of 34.
Record the quotient 9 as the next digit in the result. 
Result so far: 2279.4629
Subtracting 486 from 520 leaves us 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.

Advancing to step 11:
54 can be fit into 340 6 times, resulting in a remainder of 16.
Use 6 as the next digit of our solution. 
Result so far: 2279.46296
If we subtract 324 from 340, 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.

Let's proceed to step 12:
54 goes into 160 2 times with a remainder of 52.
Record the quotient 2 as the next digit in the result. 
Result so far: 2279.462962
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.

Going ahead to step 13:
520 divided by 54 is 9 with a remainder of 34.
The next digit of our result is 9. 
Result so far: 2279.4629629
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.

Let's proceed to step 14:
If we divide 340 by 54, we get 6 and a remainder of 16.
The next digit of our result is 6. 
Result so far: 2279.46296296
If we take 324 away from 340, we end up 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.

After the division, we end up with 2279.46296296 and a remainder of 1.6e-08.