We divide 739431 by 78
The aim is to understand the frequency of 78 in 739431.

Advancing 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
Subtract 0 from 7 to get 7.
Grab the next digit (3) from the dividend, add it to 7, then carry on: 73 / 78

Let's proceed to step 2:
If we divide 73 by 78, we get 0 and a remainder of 73.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 73 to get 73.
Take the next digit (9) from the dividend and append it to 73, then repeat: 739 / 78

Step 3:
When dividing 739 by 78, we get 9 with a remainder of 37.
Use 9 as the next digit of our solution. 
Result so far: 9.0
Deduct 702 from 739 and we're left with 37.
Append the next digit (4) from the dividend to 37 and continue with: 374 / 78

Moving on to step 4:
374 divided by 78 is 4 with a remainder of 62.
Write down 4 as next digit of the result. 
Result so far: 94.0
Deduct 312 from 374 and we're left with 62.
Include the next digit (3) from the dividend after 62, then repeat: 623 / 78

Step 5:
78 can be fit into 623 7 times, resulting in a remainder of 77.
The next digit of our result is 7. 
Result so far: 947.0
If we subtract 546 from 623, we get 77.
Include the next digit (1) from the dividend after 77, then repeat: 771 / 78

Let's proceed to step 6:
The number 78 fits into 771 9 times, leaving a remainder of 69.
The number 9 becomes the next digit in our result. 
Result so far: 9479.0
The remainder is 69 after subtracting 702 from 771.
Since there are no more digits in the dividend, we add a zero to the remainder making it 690, and continue the process.

Going ahead to step 7:
If we divide 690 by 78, we get 8 and a remainder of 66.
Record the quotient 8 as the next digit in the result. 
Result so far: 9479.8
Deduct 624 from 690 and we're left with 66.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

Let's proceed to step 8:
78 goes into 660 8 times with a remainder of 36.
Use 8 as the next digit of our solution. 
Result so far: 9479.88
If we take 624 away from 660, we end up with 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

The final outcome is 9479.88, with a leftover of 0.036.