535631 ÷ 54 
The aim is to understand the frequency of 54 in 535631.

Step 1:
54 goes into 5 0 times with a remainder of 5.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 5 to get 5.
Fetch the next digit (3) from the dividend, attach it to 5 and continue: 53 / 54

Let's proceed to step 2:
When dividing 53 by 54, we get 0 with a remainder of 53.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 53 leaves us with 53.
Include the next digit (5) from the dividend after 53, then repeat: 535 / 54

On to step 3:
54 can be fit into 535 9 times, resulting in a remainder of 49.
Record the quotient 9 as the next digit in the result. 
Result so far: 9.0
Deduct 486 from 535 and we're left with 49.
Grab the next digit (6) from the dividend, add it to 49, then carry on: 496 / 54

Going ahead to step 4:
496 divided by 54 is 9 with a remainder of 10.
Record the quotient 9 as the next digit in the result. 
Result so far: 99.0
If we take 486 away from 496, we end up with 10.
Take the next digit (3) from the dividend and append it to 10, then repeat: 103 / 54

Let's proceed to step 5:
54 can be fit into 103 1 times, resulting in a remainder of 49.
Put 1 as the next digit of the answer. 
Result so far: 991.0
If we take 54 away from 103, we end up with 49.
Grab the next digit (1) from the dividend, add it to 49, then carry on: 491 / 54

Going ahead to step 6:
54 can be fit into 491 9 times, resulting in a remainder of 5.
The next digit of our result is 9. 
Result so far: 9919.0
If we take 486 away from 491, we end up with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Going ahead to step 7:
If we divide 50 by 54, we get 0 and a remainder of 50.
Write down 0 as next digit of the result. 
Result so far: 9919.0
Subtracting 0 from 50 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 8:
500 divided by 54 is 9 with a remainder of 14.
Use 9 as the next digit of our solution. 
Result so far: 9919.09
Subtracting 486 from 500 leaves us 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.

On to step 9:
When dividing 140 by 54, we get 2 with a remainder of 32.
Write down 2 as next digit of the result. 
Result so far: 9919.092
Subtracting 108 from 140 leaves us 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: 9919.0925
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.

Moving on to step 11:
If we divide 500 by 54, we get 9 and a remainder of 14.
Put 9 as the next digit of the answer. 
Result so far: 9919.09259
If we take 486 away from 500, we end up 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.

Going ahead to step 12:
When dividing 140 by 54, we get 2 with a remainder of 32.
Put 2 as the next digit of the answer. 
Result so far: 9919.092592
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.

Moving on to step 13:
54 can be fit into 320 5 times, resulting in a remainder of 50.
Write down 5 as next digit of the result. 
Result so far: 9919.0925925
The remainder is 50 after subtracting 270 from 320.
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 14:
The number 54 fits into 500 9 times, leaving a remainder of 14.
The next digit of our result is 9. 
Result so far: 9919.09259259
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.

The final result is 9919.09259259 with a remainder of 1.4e-08.