We divide 793819 by 78
The aim is to understand the frequency of 78 in 793819.

Advancing to step 1:
When dividing 7 by 78, we get 0 with a remainder of 7.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 7 after subtracting 0 from 7.
Take the next digit (9) from the dividend and append it to 7, then repeat: 79 / 78

On to step 2:
78 goes into 79 1 times with a remainder of 1.
The next digit of our result is 1. 
Result so far: 1.0
If we subtract 78 from 79, we get 1.
Grab the next digit (3) from the dividend, add it to 1, then carry on: 13 / 78

Going ahead to step 3:
78 can be fit into 13 0 times, resulting in a remainder of 13.
The number 0 becomes the next digit in our result. 
Result so far: 10.0
Subtracting 0 from 13 leaves us with 13.
Take the next digit (8) from the dividend and append it to 13, then repeat: 138 / 78

Moving on to step 4:
If we divide 138 by 78, we get 1 and a remainder of 60.
Use 1 as the next digit of our solution. 
Result so far: 101.0
If we subtract 78 from 138, we get 60.
Append the next digit (1) from the dividend to 60 and continue with: 601 / 78

Step 5:
When dividing 601 by 78, we get 7 with a remainder of 55.
Record the quotient 7 as the next digit in the result. 
Result so far: 1017.0
Subtracting 546 from 601 leaves us with 55.
Include the next digit (9) from the dividend after 55, then repeat: 559 / 78

Going ahead to step 6:
78 goes into 559 7 times with a remainder of 13.
Put 7 as the next digit of the answer. 
Result so far: 10177.0
Subtracting 546 from 559 leaves us with 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Moving on to step 7:
78 can be fit into 130 1 times, resulting in a remainder of 52.
The next digit of our result is 1. 
Result so far: 10177.1
Deduct 78 from 130 and we're left with 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Going ahead to step 8:
78 goes into 520 6 times with a remainder of 52.
Use 6 as the next digit of our solution. 
Result so far: 10177.16
Deduct 468 from 520 and we're left with 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Going ahead to step 9:
78 can be fit into 520 6 times, resulting in a remainder of 52.
The number 6 becomes the next digit in our result. 
Result so far: 10177.166
If we subtract 468 from 520, we get 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

After the division, we end up with 10177.166 and a remainder of 0.0052.