We're dividing 738619 by 78 
The aim is to understand the frequency of 78 in 738619.

Advancing to step 1:
If we divide 7 by 78, we get 0 and 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 (3) from the dividend and append it to 7, then repeat: 73 / 78

Step 2:
78 goes into 73 0 times with a remainder of 73.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 73 and we're left with 73.
Bring next digit (8) of the dividend behind the 73 and repeat the process: 738 / 78

On to step 3:
738 divided by 78 is 9 with a remainder of 36.
Use 9 as the next digit of our solution. 
Result so far: 9.0
If we subtract 702 from 738, we get 36.
Append the next digit (6) from the dividend to 36 and continue with: 366 / 78

Moving on to step 4:
If we divide 366 by 78, we get 4 and a remainder of 54.
Write down 4 as next digit of the result. 
Result so far: 94.0
The remainder is 54 after subtracting 312 from 366.
Fetch the next digit (1) from the dividend, attach it to 54 and continue: 541 / 78

Moving on to step 5:
78 goes into 541 6 times with a remainder of 73.
The next digit of our result is 6. 
Result so far: 946.0
Subtract 468 from 541 to get 73.
Fetch the next digit (9) from the dividend, attach it to 73 and continue: 739 / 78

Step 6:
If we divide 739 by 78, we get 9 and a remainder of 37.
Put 9 as the next digit of the answer. 
Result so far: 9469.0
Deduct 702 from 739 and we're left with 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

On to step 7:
78 goes into 370 4 times with a remainder of 58.
The number 4 becomes the next digit in our result. 
Result so far: 9469.4
Deduct 312 from 370 and we're left with 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

On to step 8:
If we divide 580 by 78, we get 7 and a remainder of 34.
The next digit of our result is 7. 
Result so far: 9469.47
Subtracting 546 from 580 leaves us with 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

On to step 9:
78 goes into 340 4 times with a remainder of 28.
Use 4 as the next digit of our solution. 
Result so far: 9469.474
Subtract 312 from 340 to get 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Advancing to step 10:
If we divide 280 by 78, we get 3 and a remainder of 46.
Write down 3 as next digit of the result. 
Result so far: 9469.4743
The remainder is 46 after subtracting 234 from 280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Going ahead to step 11:
If we divide 460 by 78, we get 5 and a remainder of 70.
The number 5 becomes the next digit in our result. 
Result so far: 9469.47435
If we subtract 390 from 460, we get 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Let's proceed to step 12:
78 goes into 700 8 times with a remainder of 76.
Record the quotient 8 as the next digit in the result. 
Result so far: 9469.474358
Subtracting 624 from 700 leaves us with 76.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

Going ahead to step 13:
When dividing 760 by 78, we get 9 with a remainder of 58.
The number 9 becomes the next digit in our result. 
Result so far: 9469.4743589
Subtracting 702 from 760 leaves us with 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

Let's proceed to step 14:
78 goes into 580 7 times with a remainder of 34.
The next digit of our result is 7. 
Result so far: 9469.47435897
Subtract 546 from 580 to get 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

The final result is 9469.47435897 with a remainder of 3.4e-08.