We look at the division of 585280 by 78 
The aim is to understand the frequency of 78 in 585280.

Going ahead to step 1:
78 can be fit into 5 0 times, resulting in a remainder of 5.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 5, we end up with 5.
Grab the next digit (8) from the dividend, add it to 5, then carry on: 58 / 78

Moving on to step 2:
78 can be fit into 58 0 times, resulting in a remainder of 58.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 58, we end up with 58.
Grab the next digit (5) from the dividend, add it to 58, then carry on: 585 / 78

On to step 3:
585 divided by 78 is 7 with a remainder of 39.
Put 7 as the next digit of the answer. 
Result so far: 7.0
Subtracting 546 from 585 leaves us with 39.
Grab the next digit (2) from the dividend, add it to 39, then carry on: 392 / 78

Going ahead to step 4:
392 divided by 78 is 5 with a remainder of 2.
Use 5 as the next digit of our solution. 
Result so far: 75.0
If we subtract 390 from 392, we get 2.
Bring next digit (8) of the dividend behind the 2 and repeat the process: 28 / 78

Going ahead to step 5:
78 can be fit into 28 0 times, resulting in a remainder of 28.
The next digit of our result is 0. 
Result so far: 750.0
Subtracting 0 from 28 leaves us with 28.
Append the next digit (0) from the dividend to 28 and continue with: 280 / 78

Let's proceed to step 6:
78 goes into 280 3 times with a remainder of 46.
Write down 3 as next digit of the result. 
Result so far: 7503.0
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.

Let's proceed to step 7:
78 goes into 460 5 times with a remainder of 70.
The next digit of our result is 5. 
Result so far: 7503.5
If we take 390 away from 460, we end up 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.

Moving on to step 8:
The number 78 fits into 700 8 times, leaving a remainder of 76.
The next digit of our result is 8. 
Result so far: 7503.58
Deduct 624 from 700 and we're left 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 9:
760 divided by 78 is 9 with a remainder of 58.
Write down 9 as next digit of the result. 
Result so far: 7503.589
Deduct 702 from 760 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.

Advancing to step 10:
78 goes into 580 7 times with a remainder of 34.
Use 7 as the next digit of our solution. 
Result so far: 7503.5897
If we take 546 away from 580, we end up 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.

Advancing to step 11:
The number 78 fits into 340 4 times, leaving a remainder of 28.
Put 4 as the next digit of the answer. 
Result so far: 7503.58974
Deduct 312 from 340 and we're left 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.

On to step 12:
78 can be fit into 280 3 times, resulting in a remainder of 46.
Record the quotient 3 as the next digit in the result. 
Result so far: 7503.589743
If we subtract 234 from 280, we 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 13:
78 goes into 460 5 times with a remainder of 70.
The number 5 becomes the next digit in our result. 
Result so far: 7503.5897435
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.

On to step 14:
The number 78 fits into 700 8 times, leaving a remainder of 76.
Put 8 as the next digit of the answer. 
Result so far: 7503.58974358
Deduct 624 from 700 and we're left 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.

The final outcome is 7503.58974358, with a leftover of 7.6e-08.