We're dividing 630786 by 78 
The aim is to understand the frequency of 78 in 630786.

Advancing to step 1:
78 goes into 6 0 times with a remainder of 6.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Append the next digit (3) from the dividend to 6 and continue with: 63 / 78

Going ahead to step 2:
When dividing 63 by 78, we get 0 with a remainder of 63.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 63, we get 63.
Take the next digit (0) from the dividend and append it to 63, then repeat: 630 / 78

Let's proceed to step 3:
78 can be fit into 630 8 times, resulting in a remainder of 6.
Put 8 as the next digit of the answer. 
Result so far: 8.0
If we take 624 away from 630, we end up with 6.
Append the next digit (7) from the dividend to 6 and continue with: 67 / 78

Advancing to step 4:
If we divide 67 by 78, we get 0 and a remainder of 67.
The next digit of our result is 0. 
Result so far: 80.0
Subtracting 0 from 67 leaves us with 67.
Take the next digit (8) from the dividend and append it to 67, then repeat: 678 / 78

Let's proceed to step 5:
If we divide 678 by 78, we get 8 and a remainder of 54.
The number 8 becomes the next digit in our result. 
Result so far: 808.0
If we take 624 away from 678, we end up with 54.
Append the next digit (6) from the dividend to 54 and continue with: 546 / 78

On to step 6:
The number 78 fits into 546 7 times, leaving a remainder of 0.
The next digit of our result is 7. 
Result so far: 8087.0
The remainder is 0 after subtracting 546 from 546.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Advancing to step 7:
78 goes into 0 0 times with a remainder of 0.
The next digit of our result is 0. 
Result so far: 8087.0
Subtract 0 from 0 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Going ahead to step 8:
0 divided by 78 is 0 with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 8087.0
If we take 0 away from 0, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Our division results in 8087.0 with a remaining 0.0.