21170579 divided by 54 
The aim is to understand the frequency of 54 in 21170579.

Let's proceed to step 1:
When dividing 2 by 54, we get 0 with a remainder of 2.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 2, we end up with 2.
Fetch the next digit (1) from the dividend, attach it to 2 and continue: 21 / 54

Step 2:
When dividing 21 by 54, we get 0 with a remainder of 21.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 21 and we're left with 21.
Take the next digit (1) from the dividend and append it to 21, then repeat: 211 / 54

On to step 3:
The number 54 fits into 211 3 times, leaving a remainder of 49.
The next digit of our result is 3. 
Result so far: 3.0
If we subtract 162 from 211, we get 49.
Bring next digit (7) of the dividend behind the 49 and repeat the process: 497 / 54

Step 4:
54 goes into 497 9 times with a remainder of 11.
Record the quotient 9 as the next digit in the result. 
Result so far: 39.0
The remainder is 11 after subtracting 486 from 497.
Fetch the next digit (0) from the dividend, attach it to 11 and continue: 110 / 54

Moving on to step 5:
54 goes into 110 2 times with a remainder of 2.
Put 2 as the next digit of the answer. 
Result so far: 392.0
The remainder is 2 after subtracting 108 from 110.
Take the next digit (5) from the dividend and append it to 2, then repeat: 25 / 54

Advancing to step 6:
If we divide 25 by 54, we get 0 and a remainder of 25.
The next digit of our result is 0. 
Result so far: 3920.0
Subtract 0 from 25 to get 25.
Include the next digit (7) from the dividend after 25, then repeat: 257 / 54

Let's proceed to step 7:
If we divide 257 by 54, we get 4 and a remainder of 41.
The next digit of our result is 4. 
Result so far: 39204.0
Subtract 216 from 257 to get 41.
Append the next digit (9) from the dividend to 41 and continue with: 419 / 54

On to step 8:
419 divided by 54 is 7 with a remainder of 41.
The next digit of our result is 7. 
Result so far: 392047.0
If we take 378 away from 419, we end up with 41.
Since there are no more digits in the dividend, we add a zero to the remainder making it 410, and continue the process.

Step 9:
When dividing 410 by 54, we get 7 with a remainder of 32.
Use 7 as the next digit of our solution. 
Result so far: 392047.7
Deduct 378 from 410 and we're left with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

On to step 10:
If we divide 320 by 54, we get 5 and a remainder of 50.
Put 5 as the next digit of the answer. 
Result so far: 392047.75
Deduct 270 from 320 and we're left with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

On to step 11:
The number 54 fits into 500 9 times, leaving a remainder of 14.
Put 9 as the next digit of the answer. 
Result so far: 392047.759
Deduct 486 from 500 and we're left with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Let's proceed to step 12:
54 can be fit into 140 2 times, resulting in a remainder of 32.
Write down 2 as next digit of the result. 
Result so far: 392047.7592
Subtract 108 from 140 to get 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Let's proceed to step 13:
54 can be fit into 320 5 times, resulting in a remainder of 50.
Record the quotient 5 as the next digit in the result. 
Result so far: 392047.75925
Subtracting 270 from 320 leaves us with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Step 14:
The number 54 fits into 500 9 times, leaving a remainder of 14.
Use 9 as the next digit of our solution. 
Result so far: 392047.759259
If we subtract 486 from 500, we get 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

On to step 15:
140 divided by 54 is 2 with a remainder of 32.
Write down 2 as next digit of the result. 
Result so far: 392047.7592592
The remainder is 32 after subtracting 108 from 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Moving on to step 16:
320 divided by 54 is 5 with a remainder of 50.
Write down 5 as next digit of the result. 
Result so far: 392047.75925925
If we subtract 270 from 320, we get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

In conclusion, the division gives 392047.75925925 with a balance of 5e-08.