853330 divided by 87 
The aim is to understand the frequency of 87 in 853330.

Step 1:
When dividing 8 by 87, we get 0 with a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Include the next digit (5) from the dividend after 8, then repeat: 85 / 87

Let's proceed to step 2:
87 can be fit into 85 0 times, resulting in a remainder of 85.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 85 after subtracting 0 from 85.
Append the next digit (3) from the dividend to 85 and continue with: 853 / 87

Moving on to step 3:
When dividing 853 by 87, we get 9 with a remainder of 70.
Use 9 as the next digit of our solution. 
Result so far: 9.0
If we subtract 783 from 853, we get 70.
Fetch the next digit (3) from the dividend, attach it to 70 and continue: 703 / 87

Going ahead to step 4:
87 can be fit into 703 8 times, resulting in a remainder of 7.
Put 8 as the next digit of the answer. 
Result so far: 98.0
The remainder is 7 after subtracting 696 from 703.
Take the next digit (3) from the dividend and append it to 7, then repeat: 73 / 87

Moving on to step 5:
87 can be fit into 73 0 times, resulting in a remainder of 73.
Write down 0 as next digit of the result. 
Result so far: 980.0
The remainder is 73 after subtracting 0 from 73.
Bring next digit (0) of the dividend behind the 73 and repeat the process: 730 / 87

On to step 6:
The number 87 fits into 730 8 times, leaving a remainder of 34.
Use 8 as the next digit of our solution. 
Result so far: 9808.0
If we subtract 696 from 730, we get 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

On to step 7:
When dividing 340 by 87, we get 3 with a remainder of 79.
Record the quotient 3 as the next digit in the result. 
Result so far: 9808.3
Subtract 261 from 340 to get 79.
Since there are no more digits in the dividend, we add a zero to the remainder making it 790, and continue the process.

Advancing to step 8:
When dividing 790 by 87, we get 9 with a remainder of 7.
The next digit of our result is 9. 
Result so far: 9808.39
Subtract 783 from 790 to get 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

On to step 9:
70 divided by 87 is 0 with a remainder of 70.
The next digit of our result is 0. 
Result so far: 9808.39
Deduct 0 from 70 and we're left 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.

Step 10:
87 can be fit into 700 8 times, resulting in a remainder of 4.
Use 8 as the next digit of our solution. 
Result so far: 9808.3908
If we take 696 away from 700, we end up with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

On to step 11:
40 divided by 87 is 0 with a remainder of 40.
Use 0 as the next digit of our solution. 
Result so far: 9808.3908
Subtract 0 from 40 to get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Step 12:
When dividing 400 by 87, we get 4 with a remainder of 52.
Record the quotient 4 as the next digit in the result. 
Result so far: 9808.390804
The remainder is 52 after subtracting 348 from 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Moving on to step 13:
The number 87 fits into 520 5 times, leaving a remainder of 85.
Put 5 as the next digit of the answer. 
Result so far: 9808.3908045
Subtract 435 from 520 to get 85.
Since there are no more digits in the dividend, we add a zero to the remainder making it 850, and continue the process.

On to step 14:
The number 87 fits into 850 9 times, leaving a remainder of 67.
Use 9 as the next digit of our solution. 
Result so far: 9808.39080459
Subtracting 783 from 850 leaves us with 67.
Since there are no more digits in the dividend, we add a zero to the remainder making it 670, and continue the process.

In conclusion, the division gives 9808.39080459 with a balance of 6.7e-08.