We divide 83896628 by 521
The aim is to understand the frequency of 521 in 83896628.

Step 1:
The number 521 fits into 8 0 times, leaving a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Include the next digit (3) from the dividend after 8, then repeat: 83 / 521

Let's proceed to step 2:
83 divided by 521 is 0 with a remainder of 83.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 83, we end up with 83.
Grab the next digit (8) from the dividend, add it to 83, then carry on: 838 / 521

Going ahead to step 3:
838 divided by 521 is 1 with a remainder of 317.
The next digit of our result is 1. 
Result so far: 1.0
Deduct 521 from 838 and we're left with 317.
Append the next digit (9) from the dividend to 317 and continue with: 3179 / 521

On to step 4:
If we divide 3179 by 521, we get 6 and a remainder of 53.
Record the quotient 6 as the next digit in the result. 
Result so far: 16.0
Subtracting 3126 from 3179 leaves us with 53.
Bring next digit (6) of the dividend behind the 53 and repeat the process: 536 / 521

Moving on to step 5:
If we divide 536 by 521, we get 1 and a remainder of 15.
The next digit of our result is 1. 
Result so far: 161.0
Subtract 521 from 536 to get 15.
Take the next digit (6) from the dividend and append it to 15, then repeat: 156 / 521

On to step 6:
The number 521 fits into 156 0 times, leaving a remainder of 156.
The number 0 becomes the next digit in our result. 
Result so far: 1610.0
Subtract 0 from 156 to get 156.
Include the next digit (2) from the dividend after 156, then repeat: 1562 / 521

Moving on to step 7:
1562 divided by 521 is 2 with a remainder of 520.
Use 2 as the next digit of our solution. 
Result so far: 16102.0
Subtract 1042 from 1562 to get 520.
Fetch the next digit (8) from the dividend, attach it to 520 and continue: 5208 / 521

On to step 8:
If we divide 5208 by 521, we get 9 and a remainder of 519.
The next digit of our result is 9. 
Result so far: 161029.0
Subtract 4689 from 5208 to get 519.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5190, and continue the process.

Moving on to step 9:
If we divide 5190 by 521, we get 9 and a remainder of 501.
The next digit of our result is 9. 
Result so far: 161029.9
Deduct 4689 from 5190 and we're left with 501.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5010, and continue the process.

Step 10:
5010 divided by 521 is 9 with a remainder of 321.
Put 9 as the next digit of the answer. 
Result so far: 161029.99
If we subtract 4689 from 5010, we get 321.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3210, and continue the process.

In conclusion, the division gives 161029.99 with a balance of 0.321.