We're dividing 774134 by 78 
The aim is to understand the frequency of 78 in 774134.

Let's proceed to step 1:
The number 78 fits into 7 0 times, leaving a remainder of 7.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 7, we get 7.
Take the next digit (7) from the dividend and append it to 7, then repeat: 77 / 78

Let's proceed to step 2:
The number 78 fits into 77 0 times, leaving a remainder of 77.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 77 after subtracting 0 from 77.
Fetch the next digit (4) from the dividend, attach it to 77 and continue: 774 / 78

Going ahead to step 3:
The number 78 fits into 774 9 times, leaving a remainder of 72.
The next digit of our result is 9. 
Result so far: 9.0
Subtract 702 from 774 to get 72.
Grab the next digit (1) from the dividend, add it to 72, then carry on: 721 / 78

Going ahead to step 4:
78 goes into 721 9 times with a remainder of 19.
The number 9 becomes the next digit in our result. 
Result so far: 99.0
Deduct 702 from 721 and we're left with 19.
Include the next digit (3) from the dividend after 19, then repeat: 193 / 78

Step 5:
If we divide 193 by 78, we get 2 and a remainder of 37.
Put 2 as the next digit of the answer. 
Result so far: 992.0
If we subtract 156 from 193, we get 37.
Bring next digit (4) of the dividend behind the 37 and repeat the process: 374 / 78

Going ahead to step 6:
When dividing 374 by 78, we get 4 with a remainder of 62.
The next digit of our result is 4. 
Result so far: 9924.0
Deduct 312 from 374 and we're left with 62.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

Moving on to step 7:
620 divided by 78 is 7 with a remainder of 74.
Record the quotient 7 as the next digit in the result. 
Result so far: 9924.7
Subtracting 546 from 620 leaves us 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.

Let's proceed to step 8:
740 divided by 78 is 9 with a remainder of 38.
The number 9 becomes the next digit in our result. 
Result so far: 9924.79
If we take 702 away from 740, we end up with 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

On to step 9:
If we divide 380 by 78, we get 4 and a remainder of 68.
Use 4 as the next digit of our solution. 
Result so far: 9924.794
The remainder is 68 after subtracting 312 from 380.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

On to step 10:
78 goes into 680 8 times with a remainder of 56.
The number 8 becomes the next digit in our result. 
Result so far: 9924.7948
The remainder is 56 after subtracting 624 from 680.
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 11:
The number 78 fits into 560 7 times, leaving a remainder of 14.
The next digit of our result is 7. 
Result so far: 9924.79487
Subtract 546 from 560 to get 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Going ahead to step 12:
78 can be fit into 140 1 times, resulting in a remainder of 62.
Record the quotient 1 as the next digit in the result. 
Result so far: 9924.794871
The remainder is 62 after subtracting 78 from 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

Moving on to step 13:
78 can be fit into 620 7 times, resulting in a remainder of 74.
Use 7 as the next digit of our solution. 
Result so far: 9924.7948717
Deduct 546 from 620 and we're left 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.

Going ahead to step 14:
78 goes into 740 9 times with a remainder of 38.
Use 9 as the next digit of our solution. 
Result so far: 9924.79487179
If we take 702 away from 740, we end up with 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

The final outcome is 9924.79487179, with a leftover of 3.8e-08.