Let's divide 13494258 by 878
The aim is to understand the frequency of 878 in 13494258.

Moving on to step 1:
878 goes into 1 0 times with a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Include the next digit (3) from the dividend after 1, then repeat: 13 / 878

On to step 2:
878 can be fit into 13 0 times, resulting in a remainder of 13.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 13 leaves us with 13.
Append the next digit (4) from the dividend to 13 and continue with: 134 / 878

Advancing to step 3:
The number 878 fits into 134 0 times, leaving a remainder of 134.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 134 and we're left with 134.
Take the next digit (9) from the dividend and append it to 134, then repeat: 1349 / 878

Advancing to step 4:
The number 878 fits into 1349 1 times, leaving a remainder of 471.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
The remainder is 471 after subtracting 878 from 1349.
Include the next digit (4) from the dividend after 471, then repeat: 4714 / 878

On to step 5:
The number 878 fits into 4714 5 times, leaving a remainder of 324.
The number 5 becomes the next digit in our result. 
Result so far: 15.0
Subtract 4390 from 4714 to get 324.
Grab the next digit (2) from the dividend, add it to 324, then carry on: 3242 / 878

On to step 6:
878 goes into 3242 3 times with a remainder of 608.
Use 3 as the next digit of our solution. 
Result so far: 153.0
Deduct 2634 from 3242 and we're left with 608.
Fetch the next digit (5) from the dividend, attach it to 608 and continue: 6085 / 878

Step 7:
When dividing 6085 by 878, we get 6 with a remainder of 817.
The number 6 becomes the next digit in our result. 
Result so far: 1536.0
The remainder is 817 after subtracting 5268 from 6085.
Fetch the next digit (8) from the dividend, attach it to 817 and continue: 8178 / 878

Going ahead to step 8:
8178 divided by 878 is 9 with a remainder of 276.
Record the quotient 9 as the next digit in the result. 
Result so far: 15369.0
If we take 7902 away from 8178, we end up with 276.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2760, and continue the process.

On to step 9:
2760 divided by 878 is 3 with a remainder of 126.
Use 3 as the next digit of our solution. 
Result so far: 15369.3
Deduct 2634 from 2760 and we're left with 126.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1260, and continue the process.

On to step 10:
If we divide 1260 by 878, we get 1 and a remainder of 382.
The number 1 becomes the next digit in our result. 
Result so far: 15369.31
Subtract 878 from 1260 to get 382.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3820, and continue the process.

On to step 11:
If we divide 3820 by 878, we get 4 and a remainder of 308.
Put 4 as the next digit of the answer. 
Result so far: 15369.314
Deduct 3512 from 3820 and we're left with 308.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3080, and continue the process.

Let's proceed to step 12:
The number 878 fits into 3080 3 times, leaving a remainder of 446.
Write down 3 as next digit of the result. 
Result so far: 15369.3143
If we subtract 2634 from 3080, we get 446.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4460, and continue the process.

On to step 13:
4460 divided by 878 is 5 with a remainder of 70.
Record the quotient 5 as the next digit in the result. 
Result so far: 15369.31435
Subtracting 4390 from 4460 leaves us with 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Going ahead to step 14:
878 can be fit into 700 0 times, resulting in a remainder of 700.
Write down 0 as next digit of the result. 
Result so far: 15369.31435
Deduct 0 from 700 and we're left with 700.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7000, and continue the process.

Advancing to step 15:
If we divide 7000 by 878, we get 7 and a remainder of 854.
Record the quotient 7 as the next digit in the result. 
Result so far: 15369.3143507
If we take 6146 away from 7000, we end up with 854.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8540, and continue the process.

Step 16:
When dividing 8540 by 878, we get 9 with a remainder of 638.
Use 9 as the next digit of our solution. 
Result so far: 15369.31435079
Subtracting 7902 from 8540 leaves us with 638.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6380, and continue the process.

The final outcome is 15369.31435079, with a leftover of 6.38e-07.