908181 ÷ 78 
The aim is to understand the frequency of 78 in 908181.

Let's proceed to step 1:
9 divided by 78 is 0 with a remainder of 9.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 9, we get 9.
Include the next digit (0) from the dividend after 9, then repeat: 90 / 78

Step 2:
90 divided by 78 is 1 with a remainder of 12.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we take 78 away from 90, we end up with 12.
Include the next digit (8) from the dividend after 12, then repeat: 128 / 78

Going ahead to step 3:
78 can be fit into 128 1 times, resulting in a remainder of 50.
Put 1 as the next digit of the answer. 
Result so far: 11.0
Subtracting 78 from 128 leaves us with 50.
Bring next digit (1) of the dividend behind the 50 and repeat the process: 501 / 78

Advancing to step 4:
When dividing 501 by 78, we get 6 with a remainder of 33.
The next digit of our result is 6. 
Result so far: 116.0
Deduct 468 from 501 and we're left with 33.
Fetch the next digit (8) from the dividend, attach it to 33 and continue: 338 / 78

Moving on to step 5:
338 divided by 78 is 4 with a remainder of 26.
The next digit of our result is 4. 
Result so far: 1164.0
Subtracting 312 from 338 leaves us with 26.
Bring next digit (1) of the dividend behind the 26 and repeat the process: 261 / 78

Going ahead to step 6:
261 divided by 78 is 3 with a remainder of 27.
The number 3 becomes the next digit in our result. 
Result so far: 11643.0
The remainder is 27 after subtracting 234 from 261.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

Let's proceed to step 7:
78 can be fit into 270 3 times, resulting in a remainder of 36.
Put 3 as the next digit of the answer. 
Result so far: 11643.3
If we subtract 234 from 270, we get 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Moving on to step 8:
78 goes into 360 4 times with a remainder of 48.
Record the quotient 4 as the next digit in the result. 
Result so far: 11643.34
If we subtract 312 from 360, we get 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Moving on to step 9:
78 goes into 480 6 times with a remainder of 12.
The next digit of our result is 6. 
Result so far: 11643.346
Deduct 468 from 480 and we're left with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Let's proceed to step 10:
78 can be fit into 120 1 times, resulting in a remainder of 42.
Write down 1 as next digit of the result. 
Result so far: 11643.3461
The remainder is 42 after subtracting 78 from 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Let's proceed to step 11:
420 divided by 78 is 5 with a remainder of 30.
The number 5 becomes the next digit in our result. 
Result so far: 11643.34615
If we subtract 390 from 420, we get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

On to step 12:
If we divide 300 by 78, we get 3 and a remainder of 66.
The number 3 becomes the next digit in our result. 
Result so far: 11643.346153
If we take 234 away from 300, we end up with 66.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

Advancing to step 13:
The number 78 fits into 660 8 times, leaving a remainder of 36.
Use 8 as the next digit of our solution. 
Result so far: 11643.3461538
Subtract 624 from 660 to get 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

On to step 14:
78 goes into 360 4 times with a remainder of 48.
Write down 4 as next digit of the result. 
Result so far: 11643.34615384
The remainder is 48 after subtracting 312 from 360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

The final outcome is 11643.34615384, with a leftover of 4.8e-08.