We look at the division of 591116 by 78 
The aim is to understand the frequency of 78 in 591116.

Moving on to step 1:
5 divided by 78 is 0 with a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 5, we end up with 5.
Grab the next digit (9) from the dividend, add it to 5, then carry on: 59 / 78

Step 2:
78 can be fit into 59 0 times, resulting in a remainder of 59.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 59, we get 59.
Bring next digit (1) of the dividend behind the 59 and repeat the process: 591 / 78

Let's proceed to step 3:
When dividing 591 by 78, we get 7 with a remainder of 45.
The number 7 becomes the next digit in our result. 
Result so far: 7.0
The remainder is 45 after subtracting 546 from 591.
Append the next digit (1) from the dividend to 45 and continue with: 451 / 78

Step 4:
When dividing 451 by 78, we get 5 with a remainder of 61.
Use 5 as the next digit of our solution. 
Result so far: 75.0
The remainder is 61 after subtracting 390 from 451.
Append the next digit (1) from the dividend to 61 and continue with: 611 / 78

Going ahead to step 5:
78 can be fit into 611 7 times, resulting in a remainder of 65.
The number 7 becomes the next digit in our result. 
Result so far: 757.0
Subtract 546 from 611 to get 65.
Take the next digit (6) from the dividend and append it to 65, then repeat: 656 / 78

Going ahead to step 6:
78 goes into 656 8 times with a remainder of 32.
Record the quotient 8 as the next digit in the result. 
Result so far: 7578.0
If we take 624 away from 656, we end up with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Step 7:
When dividing 320 by 78, we get 4 with a remainder of 8.
The number 4 becomes the next digit in our result. 
Result so far: 7578.4
Subtracting 312 from 320 leaves us with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Advancing to step 8:
78 goes into 80 1 times with a remainder of 2.
The next digit of our result is 1. 
Result so far: 7578.41
If we subtract 78 from 80, we get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Step 9:
When dividing 20 by 78, we get 0 with a remainder of 20.
Record the quotient 0 as the next digit in the result. 
Result so far: 7578.41
Deduct 0 from 20 and we're left with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Step 10:
If we divide 200 by 78, we get 2 and a remainder of 44.
Use 2 as the next digit of our solution. 
Result so far: 7578.4102
If we subtract 156 from 200, we get 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

On to step 11:
The number 78 fits into 440 5 times, leaving a remainder of 50.
Use 5 as the next digit of our solution. 
Result so far: 7578.41025
Subtract 390 from 440 to get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Step 12:
78 goes into 500 6 times with a remainder of 32.
The next digit of our result is 6. 
Result so far: 7578.410256
Deduct 468 from 500 and we're left with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Moving on to step 13:
320 divided by 78 is 4 with a remainder of 8.
The next digit of our result is 4. 
Result so far: 7578.4102564
Subtract 312 from 320 to get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Let's proceed to step 14:
The number 78 fits into 80 1 times, leaving a remainder of 2.
Put 1 as the next digit of the answer. 
Result so far: 7578.41025641
If we subtract 78 from 80, we get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

The final result is 7578.41025641 with a remainder of 2e-09.