We're dividing 723217 by 78 
The aim is to understand the frequency of 78 in 723217.

Going ahead to step 1:
7 divided by 78 is 0 with a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 7 leaves us with 7.
Bring next digit (2) of the dividend behind the 7 and repeat the process: 72 / 78

Step 2:
78 can be fit into 72 0 times, resulting in a remainder of 72.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 72, we end up with 72.
Append the next digit (3) from the dividend to 72 and continue with: 723 / 78

Let's proceed to step 3:
When dividing 723 by 78, we get 9 with a remainder of 21.
Record the quotient 9 as the next digit in the result. 
Result so far: 9.0
Deduct 702 from 723 and we're left with 21.
Include the next digit (2) from the dividend after 21, then repeat: 212 / 78

Advancing to step 4:
When dividing 212 by 78, we get 2 with a remainder of 56.
The number 2 becomes the next digit in our result. 
Result so far: 92.0
Subtract 156 from 212 to get 56.
Fetch the next digit (1) from the dividend, attach it to 56 and continue: 561 / 78

Going ahead to step 5:
The number 78 fits into 561 7 times, leaving a remainder of 15.
Use 7 as the next digit of our solution. 
Result so far: 927.0
Subtracting 546 from 561 leaves us with 15.
Take the next digit (7) from the dividend and append it to 15, then repeat: 157 / 78

Moving on to step 6:
If we divide 157 by 78, we get 2 and a remainder of 1.
The number 2 becomes the next digit in our result. 
Result so far: 9272.0
Subtract 156 from 157 to get 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

On to step 7:
If we divide 10 by 78, we get 0 and a remainder of 10.
Put 0 as the next digit of the answer. 
Result so far: 9272.0
If we subtract 0 from 10, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Let's proceed to step 8:
78 can be fit into 100 1 times, resulting in a remainder of 22.
Record the quotient 1 as the next digit in the result. 
Result so far: 9272.01
If we subtract 78 from 100, we get 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Advancing to step 9:
If we divide 220 by 78, we get 2 and a remainder of 64.
Use 2 as the next digit of our solution. 
Result so far: 9272.012
Subtracting 156 from 220 leaves us with 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Step 10:
The number 78 fits into 640 8 times, leaving a remainder of 16.
The next digit of our result is 8. 
Result so far: 9272.0128
If we take 624 away from 640, we end up with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Let's proceed to step 11:
If we divide 160 by 78, we get 2 and a remainder of 4.
Record the quotient 2 as the next digit in the result. 
Result so far: 9272.01282
Subtract 156 from 160 to get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Moving on to step 12:
If we divide 40 by 78, we get 0 and a remainder of 40.
Write down 0 as next digit of the result. 
Result so far: 9272.01282
The remainder is 40 after subtracting 0 from 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Going ahead to step 13:
78 can be fit into 400 5 times, resulting in a remainder of 10.
Record the quotient 5 as the next digit in the result. 
Result so far: 9272.0128205
Subtracting 390 from 400 leaves us with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Going ahead to step 14:
78 goes into 100 1 times with a remainder of 22.
Record the quotient 1 as the next digit in the result. 
Result so far: 9272.01282051
If we take 78 away from 100, we end up with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

After the division, we end up with 9272.01282051 and a remainder of 2.2e-08.