We look at the division of 24839384 by 878 
The aim is to understand the frequency of 878 in 24839384.

Let's proceed to step 1:
The number 878 fits into 2 0 times, leaving a remainder of 2.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 2 leaves us with 2.
Include the next digit (4) from the dividend after 2, then repeat: 24 / 878

Going ahead to step 2:
If we divide 24 by 878, we get 0 and a remainder of 24.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 24, we end up with 24.
Take the next digit (8) from the dividend and append it to 24, then repeat: 248 / 878

Step 3:
If we divide 248 by 878, we get 0 and a remainder of 248.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 248 leaves us with 248.
Grab the next digit (3) from the dividend, add it to 248, then carry on: 2483 / 878

Going ahead to step 4:
The number 878 fits into 2483 2 times, leaving a remainder of 727.
Put 2 as the next digit of the answer. 
Result so far: 2.0
Subtracting 1756 from 2483 leaves us with 727.
Append the next digit (9) from the dividend to 727 and continue with: 7279 / 878

Step 5:
The number 878 fits into 7279 8 times, leaving a remainder of 255.
The number 8 becomes the next digit in our result. 
Result so far: 28.0
Deduct 7024 from 7279 and we're left with 255.
Append the next digit (3) from the dividend to 255 and continue with: 2553 / 878

Let's proceed to step 6:
878 goes into 2553 2 times with a remainder of 797.
The next digit of our result is 2. 
Result so far: 282.0
Subtract 1756 from 2553 to get 797.
Take the next digit (8) from the dividend and append it to 797, then repeat: 7978 / 878

On to step 7:
7978 divided by 878 is 9 with a remainder of 76.
Write down 9 as next digit of the result. 
Result so far: 2829.0
The remainder is 76 after subtracting 7902 from 7978.
Take the next digit (4) from the dividend and append it to 76, then repeat: 764 / 878

On to step 8:
878 can be fit into 764 0 times, resulting in a remainder of 764.
Write down 0 as next digit of the result. 
Result so far: 28290.0
If we take 0 away from 764, we end up with 764.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7640, and continue the process.

On to step 9:
The number 878 fits into 7640 8 times, leaving a remainder of 616.
Write down 8 as next digit of the result. 
Result so far: 28290.8
Deduct 7024 from 7640 and we're left with 616.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6160, and continue the process.

Let's proceed to step 10:
If we divide 6160 by 878, we get 7 and a remainder of 14.
Use 7 as the next digit of our solution. 
Result so far: 28290.87
If we take 6146 away from 6160, 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.

Going ahead to step 11:
If we divide 140 by 878, we get 0 and a remainder of 140.
Record the quotient 0 as the next digit in the result. 
Result so far: 28290.87
Deduct 0 from 140 and we're left with 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1400, and continue the process.

Going ahead to step 12:
878 can be fit into 1400 1 times, resulting in a remainder of 522.
Record the quotient 1 as the next digit in the result. 
Result so far: 28290.8701
Subtract 878 from 1400 to get 522.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5220, and continue the process.

Let's proceed to step 13:
878 can be fit into 5220 5 times, resulting in a remainder of 830.
Write down 5 as next digit of the result. 
Result so far: 28290.87015
Deduct 4390 from 5220 and we're left with 830.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8300, and continue the process.

Step 14:
If we divide 8300 by 878, we get 9 and a remainder of 398.
The number 9 becomes the next digit in our result. 
Result so far: 28290.870159
If we subtract 7902 from 8300, we get 398.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3980, and continue the process.

Advancing to step 15:
If we divide 3980 by 878, we get 4 and a remainder of 468.
Put 4 as the next digit of the answer. 
Result so far: 28290.8701594
Deduct 3512 from 3980 and we're left with 468.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4680, and continue the process.

Advancing to step 16:
4680 divided by 878 is 5 with a remainder of 290.
Use 5 as the next digit of our solution. 
Result so far: 28290.87015945
If we take 4390 away from 4680, we end up with 290.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2900, and continue the process.

The final result is 28290.87015945 with a remainder of 2.9e-07.