We look at the division of 850117 by 78 
The aim is to understand the frequency of 78 in 850117.

Step 1:
78 goes into 8 0 times with a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Append the next digit (5) from the dividend to 8 and continue with: 85 / 78

Let's proceed to step 2:
78 can be fit into 85 1 times, resulting in a remainder of 7.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we take 78 away from 85, we end up with 7.
Include the next digit (0) from the dividend after 7, then repeat: 70 / 78

Let's proceed to step 3:
78 goes into 70 0 times with a remainder of 70.
Use 0 as the next digit of our solution. 
Result so far: 10.0
Subtract 0 from 70 to get 70.
Include the next digit (1) from the dividend after 70, then repeat: 701 / 78

Moving on to step 4:
701 divided by 78 is 8 with a remainder of 77.
Record the quotient 8 as the next digit in the result. 
Result so far: 108.0
If we subtract 624 from 701, we get 77.
Include the next digit (1) from the dividend after 77, then repeat: 771 / 78

Going ahead to step 5:
If we divide 771 by 78, we get 9 and a remainder of 69.
The number 9 becomes the next digit in our result. 
Result so far: 1089.0
Deduct 702 from 771 and we're left with 69.
Include the next digit (7) from the dividend after 69, then repeat: 697 / 78

Step 6:
697 divided by 78 is 8 with a remainder of 73.
Record the quotient 8 as the next digit in the result. 
Result so far: 10898.0
The remainder is 73 after subtracting 624 from 697.
Since there are no more digits in the dividend, we add a zero to the remainder making it 730, and continue the process.

Step 7:
78 goes into 730 9 times with a remainder of 28.
Write down 9 as next digit of the result. 
Result so far: 10898.9
Deduct 702 from 730 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.

Moving on to step 8:
The number 78 fits into 280 3 times, leaving a remainder of 46.
The next digit of our result is 3. 
Result so far: 10898.93
If we take 234 away from 280, we end up with 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 9:
460 divided by 78 is 5 with a remainder of 70.
Put 5 as the next digit of the answer. 
Result so far: 10898.935
Subtract 390 from 460 to 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 10:
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: 10898.9358
The remainder is 76 after subtracting 624 from 700.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

Step 11:
If we divide 760 by 78, we get 9 and a remainder of 58.
The number 9 becomes the next digit in our result. 
Result so far: 10898.93589
If we subtract 702 from 760, we get 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 12:
If we divide 580 by 78, we get 7 and a remainder of 34.
Write down 7 as next digit of the result. 
Result so far: 10898.935897
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.

Step 13:
78 can be fit into 340 4 times, resulting in a remainder of 28.
The number 4 becomes the next digit in our result. 
Result so far: 10898.9358974
Subtracting 312 from 340 leaves us 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 14:
If we divide 280 by 78, we get 3 and a remainder of 46.
The next digit of our result is 3. 
Result so far: 10898.93589743
Subtracting 234 from 280 leaves us with 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

The quotient of the division is 10898.93589743, and the remainder is 4.6e-08.