We look at the division of 594280 by 78 
The aim is to understand the frequency of 78 in 594280.

Going ahead to step 1:
78 goes into 5 0 times with a remainder of 5.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 5 and we're left with 5.
Append the next digit (9) from the dividend to 5 and continue with: 59 / 78

Let's proceed to step 2:
When dividing 59 by 78, we get 0 with a remainder of 59.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 59, we end up with 59.
Grab the next digit (4) from the dividend, add it to 59, then carry on: 594 / 78

Step 3:
78 can be fit into 594 7 times, resulting in a remainder of 48.
The number 7 becomes the next digit in our result. 
Result so far: 7.0
If we take 546 away from 594, we end up with 48.
Include the next digit (2) from the dividend after 48, then repeat: 482 / 78

Step 4:
78 goes into 482 6 times with a remainder of 14.
Put 6 as the next digit of the answer. 
Result so far: 76.0
The remainder is 14 after subtracting 468 from 482.
Include the next digit (8) from the dividend after 14, then repeat: 148 / 78

Moving on to step 5:
78 can be fit into 148 1 times, resulting in a remainder of 70.
Use 1 as the next digit of our solution. 
Result so far: 761.0
Subtract 78 from 148 to get 70.
Include the next digit (0) from the dividend after 70, then repeat: 700 / 78

Moving on to step 6:
If we divide 700 by 78, we get 8 and a remainder of 76.
Record the quotient 8 as the next digit in the result. 
Result so far: 7618.0
Subtract 624 from 700 to get 76.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

Let's proceed to step 7:
78 goes into 760 9 times with a remainder of 58.
Record the quotient 9 as the next digit in the result. 
Result so far: 7618.9
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 8:
If we divide 580 by 78, we get 7 and a remainder of 34.
Record the quotient 7 as the next digit in the result. 
Result so far: 7618.97
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.

Advancing to step 9:
78 goes into 340 4 times with a remainder of 28.
Write down 4 as next digit of the result. 
Result so far: 7618.974
If we take 312 away from 340, we end up with 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Step 10:
When dividing 280 by 78, we get 3 with a remainder of 46.
Write down 3 as next digit of the result. 
Result so far: 7618.9743
Subtract 234 from 280 to get 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Advancing to step 11:
When dividing 460 by 78, we get 5 with a remainder of 70.
Use 5 as the next digit of our solution. 
Result so far: 7618.97435
Subtracting 390 from 460 leaves us with 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

On to step 12:
When dividing 700 by 78, we get 8 with a remainder of 76.
Put 8 as the next digit of the answer. 
Result so far: 7618.974358
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.

On to step 13:
78 goes into 760 9 times with a remainder of 58.
The next digit of our result is 9. 
Result so far: 7618.9743589
The remainder is 58 after subtracting 702 from 760.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

Moving on to step 14:
When dividing 580 by 78, we get 7 with a remainder of 34.
Put 7 as the next digit of the answer. 
Result so far: 7618.97435897
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 outcome is 7618.97435897, with a leftover of 3.4e-08.