We divide 212502 by 78
The aim is to understand the frequency of 78 in 212502.

Advancing to step 1:
When dividing 2 by 78, we get 0 with a remainder of 2.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 2 after subtracting 0 from 2.
Fetch the next digit (1) from the dividend, attach it to 2 and continue: 21 / 78

Advancing to step 2:
78 can be fit into 21 0 times, resulting in a remainder of 21.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 21 leaves us with 21.
Append the next digit (2) from the dividend to 21 and continue with: 212 / 78

On to step 3:
The number 78 fits into 212 2 times, leaving a remainder of 56.
Use 2 as the next digit of our solution. 
Result so far: 2.0
If we take 156 away from 212, we end up with 56.
Take the next digit (5) from the dividend and append it to 56, then repeat: 565 / 78

On to step 4:
78 can be fit into 565 7 times, resulting in a remainder of 19.
The number 7 becomes the next digit in our result. 
Result so far: 27.0
Subtract 546 from 565 to get 19.
Bring next digit (0) of the dividend behind the 19 and repeat the process: 190 / 78

Going ahead to step 5:
190 divided by 78 is 2 with a remainder of 34.
Record the quotient 2 as the next digit in the result. 
Result so far: 272.0
The remainder is 34 after subtracting 156 from 190.
Include the next digit (2) from the dividend after 34, then repeat: 342 / 78

Advancing to step 6:
If we divide 342 by 78, we get 4 and a remainder of 30.
Use 4 as the next digit of our solution. 
Result so far: 2724.0
Subtract 312 from 342 to get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

On to step 7:
300 divided by 78 is 3 with a remainder of 66.
The next digit of our result is 3. 
Result so far: 2724.3
If we take 234 away from 300, we end up with 66.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

Advancing to step 8:
When dividing 660 by 78, we get 8 with a remainder of 36.
Put 8 as the next digit of the answer. 
Result so far: 2724.38
Deduct 624 from 660 and we're left with 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Going ahead to step 9:
360 divided by 78 is 4 with a remainder of 48.
Put 4 as the next digit of the answer. 
Result so far: 2724.384
If we subtract 312 from 360, we get 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Moving on to step 10:
If we divide 480 by 78, we get 6 and a remainder of 12.
The next digit of our result is 6. 
Result so far: 2724.3846
If we subtract 468 from 480, we get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Going ahead to step 11:
When dividing 120 by 78, we get 1 with a remainder of 42.
Put 1 as the next digit of the answer. 
Result so far: 2724.38461
Deduct 78 from 120 and we're left with 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Step 12:
If we divide 420 by 78, we get 5 and a remainder of 30.
Put 5 as the next digit of the answer. 
Result so far: 2724.384615
Deduct 390 from 420 and we're left with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Advancing to step 13:
78 can be fit into 300 3 times, resulting in a remainder of 66.
Write down 3 as next digit of the result. 
Result so far: 2724.3846153
Subtract 234 from 300 to get 66.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

Let's proceed to step 14:
660 divided by 78 is 8 with a remainder of 36.
Write down 8 as next digit of the result. 
Result so far: 2724.38461538
Subtracting 624 from 660 leaves us with 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

In conclusion, the division gives 2724.38461538 with a balance of 3.6e-08.