58399 ÷ 54 
The aim is to understand the frequency of 54 in 58399.

Moving on to step 1:
5 divided by 54 is 0 with a remainder of 5.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 5 leaves us with 5.
Append the next digit (8) from the dividend to 5 and continue with: 58 / 54

Let's proceed to step 2:
If we divide 58 by 54, we get 1 and a remainder of 4.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtracting 54 from 58 leaves us with 4.
Grab the next digit (3) from the dividend, add it to 4, then carry on: 43 / 54

On to step 3:
If we divide 43 by 54, we get 0 and a remainder of 43.
Put 0 as the next digit of the answer. 
Result so far: 10.0
Deduct 0 from 43 and we're left with 43.
Append the next digit (9) from the dividend to 43 and continue with: 439 / 54

On to step 4:
54 can be fit into 439 8 times, resulting in a remainder of 7.
Use 8 as the next digit of our solution. 
Result so far: 108.0
The remainder is 7 after subtracting 432 from 439.
Append the next digit (9) from the dividend to 7 and continue with: 79 / 54

Going ahead to step 5:
54 goes into 79 1 times with a remainder of 25.
The number 1 becomes the next digit in our result. 
Result so far: 1081.0
If we take 54 away from 79, we end up with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Step 6:
250 divided by 54 is 4 with a remainder of 34.
Use 4 as the next digit of our solution. 
Result so far: 1081.4
Subtract 216 from 250 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.

Step 7:
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: 1081.46
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.

Let's proceed to step 8:
160 divided by 54 is 2 with a remainder of 52.
The next digit of our result is 2. 
Result so far: 1081.462
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 9:
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: 1081.4629
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.

Step 10:
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: 1081.46296
Subtracting 324 from 340 leaves us 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.

Advancing to step 11:
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: 1081.462962
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 12:
When dividing 520 by 54, we get 9 with a remainder of 34.
Record the quotient 9 as the next digit in the result. 
Result so far: 1081.4629629
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.

On to step 13:
When dividing 340 by 54, we get 6 with a remainder of 16.
The next digit of our result is 6. 
Result so far: 1081.46296296
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.

Our division results in 1081.46296296 with a remaining 1.6e-08.