We look at the division of 881312 by 78 
The aim is to understand the frequency of 78 in 881312.

Going ahead to step 1:
The number 78 fits into 8 0 times, leaving a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Append the next digit (8) from the dividend to 8 and continue with: 88 / 78

Moving on to step 2:
When dividing 88 by 78, we get 1 with a remainder of 10.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we take 78 away from 88, we end up with 10.
Append the next digit (1) from the dividend to 10 and continue with: 101 / 78

Advancing to step 3:
If we divide 101 by 78, we get 1 and a remainder of 23.
Use 1 as the next digit of our solution. 
Result so far: 11.0
If we subtract 78 from 101, we get 23.
Take the next digit (3) from the dividend and append it to 23, then repeat: 233 / 78

Moving on to step 4:
If we divide 233 by 78, we get 2 and a remainder of 77.
Put 2 as the next digit of the answer. 
Result so far: 112.0
The remainder is 77 after subtracting 156 from 233.
Fetch the next digit (1) from the dividend, attach it to 77 and continue: 771 / 78

Going ahead to step 5:
78 can be fit into 771 9 times, resulting in a remainder of 69.
Record the quotient 9 as the next digit in the result. 
Result so far: 1129.0
Subtract 702 from 771 to get 69.
Take the next digit (2) from the dividend and append it to 69, then repeat: 692 / 78

Advancing to step 6:
The number 78 fits into 692 8 times, leaving a remainder of 68.
Put 8 as the next digit of the answer. 
Result so far: 11298.0
Deduct 624 from 692 and we're left with 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Advancing to step 7:
The number 78 fits into 680 8 times, leaving a remainder of 56.
Use 8 as the next digit of our solution. 
Result so far: 11298.8
Subtracting 624 from 680 leaves us with 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Moving on to step 8:
When dividing 560 by 78, we get 7 with a remainder of 14.
Use 7 as the next digit of our solution. 
Result so far: 11298.87
If we take 546 away from 560, we end up with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Advancing to step 9:
78 can be fit into 140 1 times, resulting in a remainder of 62.
Put 1 as the next digit of the answer. 
Result so far: 11298.871
Subtract 78 from 140 to get 62.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

On to step 10:
The number 78 fits into 620 7 times, leaving a remainder of 74.
Use 7 as the next digit of our solution. 
Result so far: 11298.8717
If we take 546 away from 620, we end up with 74.
Since there are no more digits in the dividend, we add a zero to the remainder making it 740, and continue the process.

Moving on to step 11:
The number 78 fits into 740 9 times, leaving a remainder of 38.
Write down 9 as next digit of the result. 
Result so far: 11298.87179
The remainder is 38 after subtracting 702 from 740.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Step 12:
78 can be fit into 380 4 times, resulting in a remainder of 68.
Use 4 as the next digit of our solution. 
Result so far: 11298.871794
Subtract 312 from 380 to get 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Advancing to step 13:
78 goes into 680 8 times with a remainder of 56.
Put 8 as the next digit of the answer. 
Result so far: 11298.8717948
Deduct 624 from 680 and we're left with 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Advancing to step 14:
78 goes into 560 7 times with a remainder of 14.
The next digit of our result is 7. 
Result so far: 11298.87179487
The remainder is 14 after subtracting 546 from 560.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

After the division, we end up with 11298.87179487 and a remainder of 1.4e-08.