80423695 divided by 78 
The aim is to understand the frequency of 78 in 80423695.

Let's proceed to step 1:
The number 78 fits into 8 0 times, leaving a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Include the next digit (0) from the dividend after 8, then repeat: 80 / 78

Let's proceed to step 2:
78 goes into 80 1 times with a remainder of 2.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Deduct 78 from 80 and we're left with 2.
Fetch the next digit (4) from the dividend, attach it to 2 and continue: 24 / 78

Going ahead to step 3:
When dividing 24 by 78, we get 0 with a remainder of 24.
Record the quotient 0 as the next digit in the result. 
Result so far: 10.0
If we subtract 0 from 24, we get 24.
Grab the next digit (2) from the dividend, add it to 24, then carry on: 242 / 78

Let's proceed to step 4:
The number 78 fits into 242 3 times, leaving a remainder of 8.
Put 3 as the next digit of the answer. 
Result so far: 103.0
Subtracting 234 from 242 leaves us with 8.
Bring next digit (3) of the dividend behind the 8 and repeat the process: 83 / 78

Advancing to step 5:
When dividing 83 by 78, we get 1 with a remainder of 5.
Record the quotient 1 as the next digit in the result. 
Result so far: 1031.0
Subtract 78 from 83 to get 5.
Append the next digit (6) from the dividend to 5 and continue with: 56 / 78

On to step 6:
When dividing 56 by 78, we get 0 with a remainder of 56.
The next digit of our result is 0. 
Result so far: 10310.0
The remainder is 56 after subtracting 0 from 56.
Bring next digit (9) of the dividend behind the 56 and repeat the process: 569 / 78

Step 7:
The number 78 fits into 569 7 times, leaving a remainder of 23.
The next digit of our result is 7. 
Result so far: 103107.0
The remainder is 23 after subtracting 546 from 569.
Grab the next digit (5) from the dividend, add it to 23, then carry on: 235 / 78

Let's proceed to step 8:
The number 78 fits into 235 3 times, leaving a remainder of 1.
Record the quotient 3 as the next digit in the result. 
Result so far: 1031073.0
Deduct 234 from 235 and we're left with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Going ahead to step 9:
10 divided by 78 is 0 with a remainder of 10.
The next digit of our result is 0. 
Result so far: 1031073.0
If we take 0 away from 10, we end up with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Step 10:
The number 78 fits into 100 1 times, leaving a remainder of 22.
Record the quotient 1 as the next digit in the result. 
Result so far: 1031073.01
If we subtract 78 from 100, we get 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Let's proceed to step 11:
The number 78 fits into 220 2 times, leaving a remainder of 64.
Use 2 as the next digit of our solution. 
Result so far: 1031073.012
Subtract 156 from 220 to get 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Let's proceed to step 12:
When dividing 640 by 78, we get 8 with a remainder of 16.
Put 8 as the next digit of the answer. 
Result so far: 1031073.0128
Subtract 624 from 640 to get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Step 13:
If we divide 160 by 78, we get 2 and a remainder of 4.
Use 2 as the next digit of our solution. 
Result so far: 1031073.01282
Deduct 156 from 160 and we're left with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Going ahead to step 14:
78 goes into 40 0 times with a remainder of 40.
Use 0 as the next digit of our solution. 
Result so far: 1031073.01282
The remainder is 40 after subtracting 0 from 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Going ahead to step 15:
The number 78 fits into 400 5 times, leaving a remainder of 10.
The number 5 becomes the next digit in our result. 
Result so far: 1031073.0128205
Subtract 390 from 400 to get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Going ahead to step 16:
When dividing 100 by 78, we get 1 with a remainder of 22.
Put 1 as the next digit of the answer. 
Result so far: 1031073.01282051
Subtracting 78 from 100 leaves us with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

The final outcome is 1031073.01282051, with a leftover of 2.2e-08.