54329453 ÷ 678 
The aim is to understand the frequency of 678 in 54329453.

Moving on to step 1:
The number 678 fits into 5 0 times, leaving a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 5 leaves us with 5.
Fetch the next digit (4) from the dividend, attach it to 5 and continue: 54 / 678

Let's proceed to step 2:
678 goes into 54 0 times with a remainder of 54.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 54 after subtracting 0 from 54.
Bring next digit (3) of the dividend behind the 54 and repeat the process: 543 / 678

Going ahead to step 3:
678 can be fit into 543 0 times, resulting in a remainder of 543.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 543 and we're left with 543.
Bring next digit (2) of the dividend behind the 543 and repeat the process: 5432 / 678

Step 4:
678 can be fit into 5432 8 times, resulting in a remainder of 8.
Record the quotient 8 as the next digit in the result. 
Result so far: 8.0
The remainder is 8 after subtracting 5424 from 5432.
Bring next digit (9) of the dividend behind the 8 and repeat the process: 89 / 678

Let's proceed to step 5:
678 goes into 89 0 times with a remainder of 89.
Use 0 as the next digit of our solution. 
Result so far: 80.0
Subtract 0 from 89 to get 89.
Append the next digit (4) from the dividend to 89 and continue with: 894 / 678

Step 6:
678 can be fit into 894 1 times, resulting in a remainder of 216.
The next digit of our result is 1. 
Result so far: 801.0
Subtracting 678 from 894 leaves us with 216.
Bring next digit (5) of the dividend behind the 216 and repeat the process: 2165 / 678

Step 7:
2165 divided by 678 is 3 with a remainder of 131.
The next digit of our result is 3. 
Result so far: 8013.0
If we subtract 2034 from 2165, we get 131.
Include the next digit (3) from the dividend after 131, then repeat: 1313 / 678

Step 8:
678 can be fit into 1313 1 times, resulting in a remainder of 635.
The next digit of our result is 1. 
Result so far: 80131.0
Deduct 678 from 1313 and we're left with 635.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6350, and continue the process.

Let's proceed to step 9:
6350 divided by 678 is 9 with a remainder of 248.
The number 9 becomes the next digit in our result. 
Result so far: 80131.9
Deduct 6102 from 6350 and we're left with 248.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2480, and continue the process.

Advancing to step 10:
If we divide 2480 by 678, we get 3 and a remainder of 446.
Put 3 as the next digit of the answer. 
Result so far: 80131.93
The remainder is 446 after subtracting 2034 from 2480.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4460, and continue the process.

On to step 11:
678 can be fit into 4460 6 times, resulting in a remainder of 392.
The number 6 becomes the next digit in our result. 
Result so far: 80131.936
If we subtract 4068 from 4460, we get 392.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3920, and continue the process.

On to step 12:
678 goes into 3920 5 times with a remainder of 530.
Record the quotient 5 as the next digit in the result. 
Result so far: 80131.9365
Deduct 3390 from 3920 and we're left with 530.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5300, and continue the process.

Moving on to step 13:
When dividing 5300 by 678, we get 7 with a remainder of 554.
The number 7 becomes the next digit in our result. 
Result so far: 80131.93657
If we take 4746 away from 5300, we end up with 554.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5540, and continue the process.

On to step 14:
The number 678 fits into 5540 8 times, leaving a remainder of 116.
Write down 8 as next digit of the result. 
Result so far: 80131.936578
If we take 5424 away from 5540, we end up with 116.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1160, and continue the process.

On to step 15:
678 goes into 1160 1 times with a remainder of 482.
Write down 1 as next digit of the result. 
Result so far: 80131.9365781
If we take 678 away from 1160, we end up with 482.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4820, and continue the process.

Let's proceed to step 16:
678 can be fit into 4820 7 times, resulting in a remainder of 74.
Put 7 as the next digit of the answer. 
Result so far: 80131.93657817
If we subtract 4746 from 4820, we get 74.
Since there are no more digits in the dividend, we add a zero to the remainder making it 740, and continue the process.

In conclusion, the division gives 80131.93657817 with a balance of 7.4e-08.