Let's divide 915811 by 54
The aim is to understand the frequency of 54 in 915811.

Step 1:
54 can be fit into 9 0 times, resulting in a remainder of 9.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 9 after subtracting 0 from 9.
Grab the next digit (1) from the dividend, add it to 9, then carry on: 91 / 54

Moving on to step 2:
54 can be fit into 91 1 times, resulting in a remainder of 37.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we subtract 54 from 91, we get 37.
Append the next digit (5) from the dividend to 37 and continue with: 375 / 54

Moving on to step 3:
The number 54 fits into 375 6 times, leaving a remainder of 51.
Use 6 as the next digit of our solution. 
Result so far: 16.0
If we take 324 away from 375, we end up with 51.
Bring next digit (8) of the dividend behind the 51 and repeat the process: 518 / 54

Let's proceed to step 4:
When dividing 518 by 54, we get 9 with a remainder of 32.
Write down 9 as next digit of the result. 
Result so far: 169.0
Subtracting 486 from 518 leaves us with 32.
Take the next digit (1) from the dividend and append it to 32, then repeat: 321 / 54

Step 5:
If we divide 321 by 54, we get 5 and a remainder of 51.
Write down 5 as next digit of the result. 
Result so far: 1695.0
If we subtract 270 from 321, we get 51.
Fetch the next digit (1) from the dividend, attach it to 51 and continue: 511 / 54

Step 6:
When dividing 511 by 54, we get 9 with a remainder of 25.
The number 9 becomes the next digit in our result. 
Result so far: 16959.0
If we subtract 486 from 511, we get 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Advancing to step 7:
The number 54 fits into 250 4 times, leaving a remainder of 34.
Record the quotient 4 as the next digit in the result. 
Result so far: 16959.4
Deduct 216 from 250 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.

Advancing to step 8:
The number 54 fits into 340 6 times, leaving a remainder of 16.
Use 6 as the next digit of our solution. 
Result so far: 16959.46
Subtract 324 from 340 to 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.

Step 9:
When dividing 160 by 54, we get 2 with a remainder of 52.
Write down 2 as next digit of the result. 
Result so far: 16959.462
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.

Going ahead to step 10:
If we divide 520 by 54, we get 9 and a remainder of 34.
Use 9 as the next digit of our solution. 
Result so far: 16959.4629
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 11:
If we divide 340 by 54, we get 6 and a remainder of 16.
Use 6 as the next digit of our solution. 
Result so far: 16959.46296
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.

Step 12:
54 can be fit into 160 2 times, resulting in a remainder of 52.
Use 2 as the next digit of our solution. 
Result so far: 16959.462962
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.

Going ahead to step 13:
If we divide 520 by 54, we get 9 and a remainder of 34.
Put 9 as the next digit of the answer. 
Result so far: 16959.4629629
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.

Step 14:
54 goes into 340 6 times with a remainder of 16.
Record the quotient 6 as the next digit in the result. 
Result so far: 16959.46296296
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.

The final outcome is 16959.46296296, with a leftover of 1.6e-08.