98034999 ÷ 521 
The aim is to understand the frequency of 521 in 98034999.

Step 1:
When dividing 9 by 521, we get 0 with a remainder of 9.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 9 and we're left with 9.
Grab the next digit (8) from the dividend, add it to 9, then carry on: 98 / 521

Step 2:
521 goes into 98 0 times with a remainder of 98.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 98 leaves us with 98.
Append the next digit (0) from the dividend to 98 and continue with: 980 / 521

Let's proceed to step 3:
If we divide 980 by 521, we get 1 and a remainder of 459.
The next digit of our result is 1. 
Result so far: 1.0
Subtracting 521 from 980 leaves us with 459.
Append the next digit (3) from the dividend to 459 and continue with: 4593 / 521

Moving on to step 4:
521 goes into 4593 8 times with a remainder of 425.
Write down 8 as next digit of the result. 
Result so far: 18.0
Deduct 4168 from 4593 and we're left with 425.
Include the next digit (4) from the dividend after 425, then repeat: 4254 / 521

Going ahead to step 5:
The number 521 fits into 4254 8 times, leaving a remainder of 86.
Use 8 as the next digit of our solution. 
Result so far: 188.0
Subtract 4168 from 4254 to get 86.
Grab the next digit (9) from the dividend, add it to 86, then carry on: 869 / 521

Advancing to step 6:
When dividing 869 by 521, we get 1 with a remainder of 348.
Put 1 as the next digit of the answer. 
Result so far: 1881.0
Deduct 521 from 869 and we're left with 348.
Append the next digit (9) from the dividend to 348 and continue with: 3489 / 521

Advancing to step 7:
If we divide 3489 by 521, we get 6 and a remainder of 363.
Use 6 as the next digit of our solution. 
Result so far: 18816.0
Subtract 3126 from 3489 to get 363.
Bring next digit (9) of the dividend behind the 363 and repeat the process: 3639 / 521

Advancing to step 8:
521 goes into 3639 6 times with a remainder of 513.
The next digit of our result is 6. 
Result so far: 188166.0
Deduct 3126 from 3639 and we're left with 513.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5130, and continue the process.

Moving on to step 9:
521 goes into 5130 9 times with a remainder of 441.
Write down 9 as next digit of the result. 
Result so far: 188166.9
The remainder is 441 after subtracting 4689 from 5130.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4410, and continue the process.

Let's proceed to step 10:
When dividing 4410 by 521, we get 8 with a remainder of 242.
The number 8 becomes the next digit in our result. 
Result so far: 188166.98
If we subtract 4168 from 4410, we get 242.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2420, and continue the process.

Moving on to step 11:
2420 divided by 521 is 4 with a remainder of 336.
The next digit of our result is 4. 
Result so far: 188166.984
Subtract 2084 from 2420 to get 336.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3360, and continue the process.

Going ahead to step 12:
3360 divided by 521 is 6 with a remainder of 234.
The next digit of our result is 6. 
Result so far: 188166.9846
If we take 3126 away from 3360, we end up with 234.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2340, and continue the process.

On to step 13:
If we divide 2340 by 521, we get 4 and a remainder of 256.
Write down 4 as next digit of the result. 
Result so far: 188166.98464
Subtracting 2084 from 2340 leaves us with 256.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2560, and continue the process.

Step 14:
The number 521 fits into 2560 4 times, leaving a remainder of 476.
Record the quotient 4 as the next digit in the result. 
Result so far: 188166.984644
Subtract 2084 from 2560 to get 476.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4760, and continue the process.

Our division results in 188166.984644 with a remaining 4.76e-05.