We're dividing 155203 by 54 
The aim is to understand the frequency of 54 in 155203.

On to step 1:
1 divided by 54 is 0 with a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 1, we end up with 1.
Bring next digit (5) of the dividend behind the 1 and repeat the process: 15 / 54

Advancing to step 2:
The number 54 fits into 15 0 times, leaving a remainder of 15.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 15 and we're left with 15.
Take the next digit (5) from the dividend and append it to 15, then repeat: 155 / 54

Moving on to step 3:
54 goes into 155 2 times with a remainder of 47.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
Deduct 108 from 155 and we're left with 47.
Append the next digit (2) from the dividend to 47 and continue with: 472 / 54

Moving on to step 4:
If we divide 472 by 54, we get 8 and a remainder of 40.
The number 8 becomes the next digit in our result. 
Result so far: 28.0
Deduct 432 from 472 and we're left with 40.
Bring next digit (0) of the dividend behind the 40 and repeat the process: 400 / 54

Let's proceed to step 5:
The number 54 fits into 400 7 times, leaving a remainder of 22.
The number 7 becomes the next digit in our result. 
Result so far: 287.0
Subtracting 378 from 400 leaves us with 22.
Take the next digit (3) from the dividend and append it to 22, then repeat: 223 / 54

Moving on to step 6:
223 divided by 54 is 4 with a remainder of 7.
Put 4 as the next digit of the answer. 
Result so far: 2874.0
If we subtract 216 from 223, we get 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Step 7:
70 divided by 54 is 1 with a remainder of 16.
Record the quotient 1 as the next digit in the result. 
Result so far: 2874.1
Deduct 54 from 70 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.

Moving on to step 8:
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: 2874.12
If we take 108 away from 160, 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.

Moving on to step 9:
When dividing 520 by 54, we get 9 with a remainder of 34.
Write down 9 as next digit of the result. 
Result so far: 2874.129
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 10:
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: 2874.1296
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.

Advancing to step 11:
160 divided by 54 is 2 with a remainder of 52.
Record the quotient 2 as the next digit in the result. 
Result so far: 2874.12962
If we subtract 108 from 160, we 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.

Step 12:
The number 54 fits into 520 9 times, leaving a remainder of 34.
Put 9 as the next digit of the answer. 
Result so far: 2874.129629
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.

Going ahead to step 13:
340 divided by 54 is 6 with a remainder of 16.
Write down 6 as next digit of the result. 
Result so far: 2874.1296296
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.

Step 14:
If we divide 160 by 54, we get 2 and a remainder of 52.
Write down 2 as next digit of the result. 
Result so far: 2874.12962962
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.

The final outcome is 2874.12962962, with a leftover of 5.2e-08.