We're dividing 878689 by 53 
The aim is to understand the frequency of 53 in 878689.

Step 1:
53 can be fit into 8 0 times, resulting in a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Include the next digit (7) from the dividend after 8, then repeat: 87 / 53

On to step 2:
53 goes into 87 1 times with a remainder of 34.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
If we subtract 53 from 87, we get 34.
Grab the next digit (8) from the dividend, add it to 34, then carry on: 348 / 53

On to step 3:
When dividing 348 by 53, we get 6 with a remainder of 30.
Use 6 as the next digit of our solution. 
Result so far: 16.0
If we take 318 away from 348, we end up with 30.
Include the next digit (6) from the dividend after 30, then repeat: 306 / 53

Moving on to step 4:
The number 53 fits into 306 5 times, leaving a remainder of 41.
Use 5 as the next digit of our solution. 
Result so far: 165.0
Subtract 265 from 306 to get 41.
Append the next digit (8) from the dividend to 41 and continue with: 418 / 53

Advancing to step 5:
418 divided by 53 is 7 with a remainder of 47.
The next digit of our result is 7. 
Result so far: 1657.0
Subtract 371 from 418 to get 47.
Take the next digit (9) from the dividend and append it to 47, then repeat: 479 / 53

Let's proceed to step 6:
If we divide 479 by 53, we get 9 and a remainder of 2.
Put 9 as the next digit of the answer. 
Result so far: 16579.0
If we take 477 away from 479, we end up with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Advancing to step 7:
If we divide 20 by 53, we get 0 and a remainder of 20.
Record the quotient 0 as the next digit in the result. 
Result so far: 16579.0
Deduct 0 from 20 and we're left with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Advancing to step 8:
200 divided by 53 is 3 with a remainder of 41.
Record the quotient 3 as the next digit in the result. 
Result so far: 16579.03
Subtract 159 from 200 to get 41.
Since there are no more digits in the dividend, we add a zero to the remainder making it 410, and continue the process.

Step 9:
If we divide 410 by 53, we get 7 and a remainder of 39.
Use 7 as the next digit of our solution. 
Result so far: 16579.037
The remainder is 39 after subtracting 371 from 410.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

Going ahead to step 10:
390 divided by 53 is 7 with a remainder of 19.
The next digit of our result is 7. 
Result so far: 16579.0377
Subtracting 371 from 390 leaves us with 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

In conclusion, the division gives 16579.0377 with a balance of 0.00019.