Let's divide 83018171 by 621
The aim is to understand the frequency of 621 in 83018171.

Moving on to step 1:
The number 621 fits into 8 0 times, leaving a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Append the next digit (3) from the dividend to 8 and continue with: 83 / 621

Advancing to step 2:
When dividing 83 by 621, we get 0 with a remainder of 83.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 83 leaves us with 83.
Include the next digit (0) from the dividend after 83, then repeat: 830 / 621

Step 3:
When dividing 830 by 621, we get 1 with a remainder of 209.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Deduct 621 from 830 and we're left with 209.
Include the next digit (1) from the dividend after 209, then repeat: 2091 / 621

Let's proceed to step 4:
621 can be fit into 2091 3 times, resulting in a remainder of 228.
The next digit of our result is 3. 
Result so far: 13.0
If we subtract 1863 from 2091, we get 228.
Bring next digit (8) of the dividend behind the 228 and repeat the process: 2288 / 621

Going ahead to step 5:
The number 621 fits into 2288 3 times, leaving a remainder of 425.
The next digit of our result is 3. 
Result so far: 133.0
If we subtract 1863 from 2288, we get 425.
Include the next digit (1) from the dividend after 425, then repeat: 4251 / 621

Let's proceed to step 6:
621 can be fit into 4251 6 times, resulting in a remainder of 525.
The next digit of our result is 6. 
Result so far: 1336.0
The remainder is 525 after subtracting 3726 from 4251.
Append the next digit (7) from the dividend to 525 and continue with: 5257 / 621

Let's proceed to step 7:
621 goes into 5257 8 times with a remainder of 289.
The next digit of our result is 8. 
Result so far: 13368.0
The remainder is 289 after subtracting 4968 from 5257.
Fetch the next digit (1) from the dividend, attach it to 289 and continue: 2891 / 621

Let's proceed to step 8:
When dividing 2891 by 621, we get 4 with a remainder of 407.
The number 4 becomes the next digit in our result. 
Result so far: 133684.0
If we take 2484 away from 2891, we end up with 407.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4070, and continue the process.

Let's proceed to step 9:
621 goes into 4070 6 times with a remainder of 344.
The number 6 becomes the next digit in our result. 
Result so far: 133684.6
Subtract 3726 from 4070 to get 344.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3440, and continue the process.

Advancing to step 10:
621 goes into 3440 5 times with a remainder of 335.
Write down 5 as next digit of the result. 
Result so far: 133684.65
The remainder is 335 after subtracting 3105 from 3440.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3350, and continue the process.

Let's proceed to step 11:
The number 621 fits into 3350 5 times, leaving a remainder of 245.
Use 5 as the next digit of our solution. 
Result so far: 133684.655
If we take 3105 away from 3350, we end up with 245.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2450, and continue the process.

In conclusion, the division gives 133684.655 with a balance of 0.0245.