866858 divided by 54 
The aim is to understand the frequency of 54 in 866858.

Moving on to step 1:
If we divide 8 by 54, we get 0 and a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Bring next digit (6) of the dividend behind the 8 and repeat the process: 86 / 54

Going ahead to step 2:
54 can be fit into 86 1 times, resulting in a remainder of 32.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
If we subtract 54 from 86, we get 32.
Include the next digit (6) from the dividend after 32, then repeat: 326 / 54

Going ahead to step 3:
54 can be fit into 326 6 times, resulting in a remainder of 2.
Write down 6 as next digit of the result. 
Result so far: 16.0
Subtracting 324 from 326 leaves us with 2.
Bring next digit (8) of the dividend behind the 2 and repeat the process: 28 / 54

Let's proceed to step 4:
54 goes into 28 0 times with a remainder of 28.
Record the quotient 0 as the next digit in the result. 
Result so far: 160.0
The remainder is 28 after subtracting 0 from 28.
Fetch the next digit (5) from the dividend, attach it to 28 and continue: 285 / 54

Let's proceed to step 5:
285 divided by 54 is 5 with a remainder of 15.
Write down 5 as next digit of the result. 
Result so far: 1605.0
If we subtract 270 from 285, we get 15.
Append the next digit (8) from the dividend to 15 and continue with: 158 / 54

Advancing to step 6:
54 goes into 158 2 times with a remainder of 50.
Use 2 as the next digit of our solution. 
Result so far: 16052.0
Subtracting 108 from 158 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.

On to step 7:
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: 16052.9
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.

Advancing to step 8:
140 divided by 54 is 2 with a remainder of 32.
The number 2 becomes the next digit in our result. 
Result so far: 16052.92
If we subtract 108 from 140, we 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.

Going ahead to step 9:
The number 54 fits into 320 5 times, leaving a remainder of 50.
Write down 5 as next digit of the result. 
Result so far: 16052.925
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.

Going ahead to step 10:
When dividing 500 by 54, we get 9 with a remainder of 14.
Use 9 as the next digit of our solution. 
Result so far: 16052.9259
The remainder is 14 after subtracting 486 from 500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Step 11:
When dividing 140 by 54, we get 2 with a remainder of 32.
The next digit of our result is 2. 
Result so far: 16052.92592
Deduct 108 from 140 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.

Going ahead to step 12:
If we divide 320 by 54, we get 5 and a remainder of 50.
Use 5 as the next digit of our solution. 
Result so far: 16052.925925
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.

Let's proceed to step 13:
54 goes into 500 9 times with a remainder of 14.
Write down 9 as next digit of the result. 
Result so far: 16052.9259259
Subtract 486 from 500 to 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.

Let's proceed to step 14:
54 can be fit into 140 2 times, resulting in a remainder of 32.
The number 2 becomes the next digit in our result. 
Result so far: 16052.92592592
If we take 108 away from 140, we end up 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.

The quotient of the division is 16052.92592592, and the remainder is 3.2e-08.