We're dividing 87260663 by 613 
The aim is to understand the frequency of 613 in 87260663.

Advancing to step 1:
The number 613 fits into 8 0 times, leaving a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Append the next digit (7) from the dividend to 8 and continue with: 87 / 613

Moving on to step 2:
613 can be fit into 87 0 times, resulting in a remainder of 87.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 87 and we're left with 87.
Fetch the next digit (2) from the dividend, attach it to 87 and continue: 872 / 613

Step 3:
872 divided by 613 is 1 with a remainder of 259.
The next digit of our result is 1. 
Result so far: 1.0
Subtracting 613 from 872 leaves us with 259.
Fetch the next digit (6) from the dividend, attach it to 259 and continue: 2596 / 613

Moving on to step 4:
The number 613 fits into 2596 4 times, leaving a remainder of 144.
Use 4 as the next digit of our solution. 
Result so far: 14.0
Subtracting 2452 from 2596 leaves us with 144.
Take the next digit (0) from the dividend and append it to 144, then repeat: 1440 / 613

Advancing to step 5:
The number 613 fits into 1440 2 times, leaving a remainder of 214.
Use 2 as the next digit of our solution. 
Result so far: 142.0
If we subtract 1226 from 1440, we get 214.
Include the next digit (6) from the dividend after 214, then repeat: 2146 / 613

Moving on to step 6:
When dividing 2146 by 613, we get 3 with a remainder of 307.
Record the quotient 3 as the next digit in the result. 
Result so far: 1423.0
Deduct 1839 from 2146 and we're left with 307.
Fetch the next digit (6) from the dividend, attach it to 307 and continue: 3076 / 613

Step 7:
If we divide 3076 by 613, we get 5 and a remainder of 11.
The next digit of our result is 5. 
Result so far: 14235.0
Deduct 3065 from 3076 and we're left with 11.
Include the next digit (3) from the dividend after 11, then repeat: 113 / 613

Going ahead to step 8:
613 goes into 113 0 times with a remainder of 113.
Use 0 as the next digit of our solution. 
Result so far: 142350.0
Deduct 0 from 113 and we're left with 113.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1130, and continue the process.

Going ahead to step 9:
The number 613 fits into 1130 1 times, leaving a remainder of 517.
The number 1 becomes the next digit in our result. 
Result so far: 142350.1
If we take 613 away from 1130, we end up with 517.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5170, and continue the process.

Let's proceed to step 10:
613 goes into 5170 8 times with a remainder of 266.
Write down 8 as next digit of the result. 
Result so far: 142350.18
Deduct 4904 from 5170 and we're left with 266.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2660, and continue the process.

Advancing to step 11:
613 goes into 2660 4 times with a remainder of 208.
Record the quotient 4 as the next digit in the result. 
Result so far: 142350.184
Deduct 2452 from 2660 and we're left with 208.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2080, and continue the process.

On to step 12:
When dividing 2080 by 613, we get 3 with a remainder of 241.
The number 3 becomes the next digit in our result. 
Result so far: 142350.1843
Subtracting 1839 from 2080 leaves us with 241.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2410, and continue the process.

Step 13:
If we divide 2410 by 613, we get 3 and a remainder of 571.
The next digit of our result is 3. 
Result so far: 142350.18433
Subtract 1839 from 2410 to get 571.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5710, and continue the process.

In conclusion, the division gives 142350.18433 with a balance of 0.000571.