We divide 985824 by 78
The aim is to understand the frequency of 78 in 985824.

Going ahead to step 1:
78 can be fit into 9 0 times, resulting in a remainder of 9.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 9 and we're left with 9.
Take the next digit (8) from the dividend and append it to 9, then repeat: 98 / 78

Let's proceed to step 2:
The number 78 fits into 98 1 times, leaving a remainder of 20.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we take 78 away from 98, we end up with 20.
Take the next digit (5) from the dividend and append it to 20, then repeat: 205 / 78

Going ahead to step 3:
If we divide 205 by 78, we get 2 and a remainder of 49.
The number 2 becomes the next digit in our result. 
Result so far: 12.0
Deduct 156 from 205 and we're left with 49.
Fetch the next digit (8) from the dividend, attach it to 49 and continue: 498 / 78

Going ahead to step 4:
When dividing 498 by 78, we get 6 with a remainder of 30.
Put 6 as the next digit of the answer. 
Result so far: 126.0
If we subtract 468 from 498, we get 30.
Grab the next digit (2) from the dividend, add it to 30, then carry on: 302 / 78

On to step 5:
If we divide 302 by 78, we get 3 and a remainder of 68.
The number 3 becomes the next digit in our result. 
Result so far: 1263.0
If we take 234 away from 302, we end up with 68.
Fetch the next digit (4) from the dividend, attach it to 68 and continue: 684 / 78

On to step 6:
78 goes into 684 8 times with a remainder of 60.
Put 8 as the next digit of the answer. 
Result so far: 12638.0
If we subtract 624 from 684, we get 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Going ahead to step 7:
The number 78 fits into 600 7 times, leaving a remainder of 54.
Use 7 as the next digit of our solution. 
Result so far: 12638.7
Deduct 546 from 600 and we're left with 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

Advancing to step 8:
78 can be fit into 540 6 times, resulting in a remainder of 72.
Use 6 as the next digit of our solution. 
Result so far: 12638.76
Subtract 468 from 540 to get 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

On to step 9:
720 divided by 78 is 9 with a remainder of 18.
The next digit of our result is 9. 
Result so far: 12638.769
Subtracting 702 from 720 leaves us with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Going ahead to step 10:
If we divide 180 by 78, we get 2 and a remainder of 24.
Put 2 as the next digit of the answer. 
Result so far: 12638.7692
If we take 156 away from 180, we end up with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

On to step 11:
78 can be fit into 240 3 times, resulting in a remainder of 6.
Put 3 as the next digit of the answer. 
Result so far: 12638.76923
If we take 234 away from 240, we end up with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Going ahead to step 12:
If we divide 60 by 78, we get 0 and a remainder of 60.
The next digit of our result is 0. 
Result so far: 12638.76923
If we subtract 0 from 60, we get 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Going ahead to step 13:
78 can be fit into 600 7 times, resulting in a remainder of 54.
The next digit of our result is 7. 
Result so far: 12638.7692307
If we take 546 away from 600, we end up with 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

On to step 14:
The number 78 fits into 540 6 times, leaving a remainder of 72.
Use 6 as the next digit of our solution. 
Result so far: 12638.76923076
Subtracting 468 from 540 leaves us with 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

The final outcome is 12638.76923076, with a leftover of 7.2e-08.