817764 ÷ 78 
The aim is to understand the frequency of 78 in 817764.

Advancing to step 1:
78 goes into 8 0 times with a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Take the next digit (1) from the dividend and append it to 8, then repeat: 81 / 78

Advancing to step 2:
81 divided by 78 is 1 with a remainder of 3.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
If we take 78 away from 81, we end up with 3.
Fetch the next digit (7) from the dividend, attach it to 3 and continue: 37 / 78

Step 3:
When dividing 37 by 78, we get 0 with a remainder of 37.
The next digit of our result is 0. 
Result so far: 10.0
Subtracting 0 from 37 leaves us with 37.
Fetch the next digit (7) from the dividend, attach it to 37 and continue: 377 / 78

Step 4:
377 divided by 78 is 4 with a remainder of 65.
The next digit of our result is 4. 
Result so far: 104.0
The remainder is 65 after subtracting 312 from 377.
Append the next digit (6) from the dividend to 65 and continue with: 656 / 78

Let's proceed to step 5:
The number 78 fits into 656 8 times, leaving a remainder of 32.
The number 8 becomes the next digit in our result. 
Result so far: 1048.0
Subtract 624 from 656 to get 32.
Append the next digit (4) from the dividend to 32 and continue with: 324 / 78

Advancing to step 6:
324 divided by 78 is 4 with a remainder of 12.
The next digit of our result is 4. 
Result so far: 10484.0
Subtracting 312 from 324 leaves us 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.

Advancing to step 7:
If we divide 120 by 78, we get 1 and a remainder of 42.
The number 1 becomes the next digit in our result. 
Result so far: 10484.1
If we subtract 78 from 120, we get 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Advancing to step 8:
When dividing 420 by 78, we get 5 with a remainder of 30.
Write down 5 as next digit of the result. 
Result so far: 10484.15
Subtract 390 from 420 to 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.

Going ahead to step 9:
300 divided by 78 is 3 with a remainder of 66.
Record the quotient 3 as the next digit in the result. 
Result so far: 10484.153
The remainder is 66 after subtracting 234 from 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

Let's proceed to step 10:
78 can be fit into 660 8 times, resulting in a remainder of 36.
Put 8 as the next digit of the answer. 
Result so far: 10484.1538
If we take 624 away from 660, we end up with 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Going ahead to step 11:
If we divide 360 by 78, we get 4 and a remainder of 48.
The number 4 becomes the next digit in our result. 
Result so far: 10484.15384
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.

Step 12:
When dividing 480 by 78, we get 6 with a remainder of 12.
The number 6 becomes the next digit in our result. 
Result so far: 10484.153846
If we take 468 away from 480, we end up 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 13:
If we divide 120 by 78, we get 1 and a remainder of 42.
Write down 1 as next digit of the result. 
Result so far: 10484.1538461
Subtract 78 from 120 to get 42.
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 14:
420 divided by 78 is 5 with a remainder of 30.
Write down 5 as next digit of the result. 
Result so far: 10484.15384615
Subtract 390 from 420 to 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.

Our division results in 10484.15384615 with a remaining 3e-08.