99271972 divided by 678 
The aim is to understand the frequency of 678 in 99271972.

Step 1:
When dividing 9 by 678, we get 0 with a remainder of 9.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 9 to get 9.
Take the next digit (9) from the dividend and append it to 9, then repeat: 99 / 678

Moving on to step 2:
99 divided by 678 is 0 with a remainder of 99.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 99 to get 99.
Bring next digit (2) of the dividend behind the 99 and repeat the process: 992 / 678

Going ahead to step 3:
678 can be fit into 992 1 times, resulting in a remainder of 314.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we take 678 away from 992, we end up with 314.
Take the next digit (7) from the dividend and append it to 314, then repeat: 3147 / 678

Step 4:
678 goes into 3147 4 times with a remainder of 435.
The number 4 becomes the next digit in our result. 
Result so far: 14.0
If we take 2712 away from 3147, we end up with 435.
Include the next digit (1) from the dividend after 435, then repeat: 4351 / 678

Advancing to step 5:
678 goes into 4351 6 times with a remainder of 283.
The next digit of our result is 6. 
Result so far: 146.0
If we take 4068 away from 4351, we end up with 283.
Append the next digit (9) from the dividend to 283 and continue with: 2839 / 678

Going ahead to step 6:
678 goes into 2839 4 times with a remainder of 127.
Put 4 as the next digit of the answer. 
Result so far: 1464.0
Subtract 2712 from 2839 to get 127.
Fetch the next digit (7) from the dividend, attach it to 127 and continue: 1277 / 678

Let's proceed to step 7:
678 can be fit into 1277 1 times, resulting in a remainder of 599.
Write down 1 as next digit of the result. 
Result so far: 14641.0
Subtract 678 from 1277 to get 599.
Fetch the next digit (2) from the dividend, attach it to 599 and continue: 5992 / 678

Step 8:
678 can be fit into 5992 8 times, resulting in a remainder of 568.
Use 8 as the next digit of our solution. 
Result so far: 146418.0
Subtracting 5424 from 5992 leaves us with 568.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5680, and continue the process.

Moving on to step 9:
678 goes into 5680 8 times with a remainder of 256.
The number 8 becomes the next digit in our result. 
Result so far: 146418.8
If we take 5424 away from 5680, we end up with 256.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2560, and continue the process.

Let's proceed to step 10:
2560 divided by 678 is 3 with a remainder of 526.
The next digit of our result is 3. 
Result so far: 146418.83
Deduct 2034 from 2560 and we're left with 526.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5260, and continue the process.

Moving on to step 11:
The number 678 fits into 5260 7 times, leaving a remainder of 514.
Write down 7 as next digit of the result. 
Result so far: 146418.837
Deduct 4746 from 5260 and we're left with 514.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5140, and continue the process.

Let's proceed to step 12:
If we divide 5140 by 678, we get 7 and a remainder of 394.
Write down 7 as next digit of the result. 
Result so far: 146418.8377
If we take 4746 away from 5140, we end up with 394.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3940, and continue the process.

After the division, we end up with 146418.8377 and a remainder of 0.00394.