785555 divided by 78 
The aim is to understand the frequency of 78 in 785555.

Advancing to step 1:
If we divide 7 by 78, we get 0 and a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 7, we get 7.
Bring next digit (8) of the dividend behind the 7 and repeat the process: 78 / 78

Step 2:
The number 78 fits into 78 1 times, leaving a remainder of 0.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we take 78 away from 78, we end up with 0.
Fetch the next digit (5) from the dividend, attach it to 0 and continue: 5 / 78

Going ahead to step 3:
The number 78 fits into 5 0 times, leaving a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 10.0
If we take 0 away from 5, we end up with 5.
Include the next digit (5) from the dividend after 5, then repeat: 55 / 78

Moving on to step 4:
If we divide 55 by 78, we get 0 and a remainder of 55.
Put 0 as the next digit of the answer. 
Result so far: 100.0
If we subtract 0 from 55, we get 55.
Fetch the next digit (5) from the dividend, attach it to 55 and continue: 555 / 78

Step 5:
78 goes into 555 7 times with a remainder of 9.
Put 7 as the next digit of the answer. 
Result so far: 1007.0
The remainder is 9 after subtracting 546 from 555.
Grab the next digit (5) from the dividend, add it to 9, then carry on: 95 / 78

Moving on to step 6:
When dividing 95 by 78, we get 1 with a remainder of 17.
The next digit of our result is 1. 
Result so far: 10071.0
If we subtract 78 from 95, we get 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Advancing to step 7:
If we divide 170 by 78, we get 2 and a remainder of 14.
Use 2 as the next digit of our solution. 
Result so far: 10071.2
If we take 156 away from 170, we end up with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Advancing to step 8:
When dividing 140 by 78, we get 1 with a remainder of 62.
The number 1 becomes the next digit in our result. 
Result so far: 10071.21
Subtracting 78 from 140 leaves us with 62.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

Going ahead to step 9:
78 can be fit into 620 7 times, resulting in a remainder of 74.
The next digit of our result is 7. 
Result so far: 10071.217
Subtract 546 from 620 to get 74.
Since there are no more digits in the dividend, we add a zero to the remainder making it 740, and continue the process.

Step 10:
When dividing 740 by 78, we get 9 with a remainder of 38.
Write down 9 as next digit of the result. 
Result so far: 10071.2179
Deduct 702 from 740 and we're left with 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Moving on to step 11:
The number 78 fits into 380 4 times, leaving a remainder of 68.
Write down 4 as next digit of the result. 
Result so far: 10071.21794
The remainder is 68 after subtracting 312 from 380.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Moving on to step 12:
78 goes into 680 8 times with a remainder of 56.
The number 8 becomes the next digit in our result. 
Result so far: 10071.217948
If we take 624 away from 680, we end up with 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Going ahead to step 13:
When dividing 560 by 78, we get 7 with a remainder of 14.
Write down 7 as next digit of the result. 
Result so far: 10071.2179487
Subtract 546 from 560 to get 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

On to step 14:
78 goes into 140 1 times with a remainder of 62.
The next digit of our result is 1. 
Result so far: 10071.21794871
Deduct 78 from 140 and we're left with 62.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

Our division results in 10071.21794871 with a remaining 6.2e-08.