17192953 ÷ 521 
The aim is to understand the frequency of 521 in 17192953.

On to step 1:
If we divide 1 by 521, we get 0 and a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Fetch the next digit (7) from the dividend, attach it to 1 and continue: 17 / 521

Step 2:
521 goes into 17 0 times with a remainder of 17.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 17, we get 17.
Bring next digit (1) of the dividend behind the 17 and repeat the process: 171 / 521

Moving on to step 3:
When dividing 171 by 521, we get 0 with a remainder of 171.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 171 after subtracting 0 from 171.
Append the next digit (9) from the dividend to 171 and continue with: 1719 / 521

Advancing to step 4:
When dividing 1719 by 521, we get 3 with a remainder of 156.
Write down 3 as next digit of the result. 
Result so far: 3.0
Deduct 1563 from 1719 and we're left with 156.
Include the next digit (2) from the dividend after 156, then repeat: 1562 / 521

Moving on to step 5:
521 goes into 1562 2 times with a remainder of 520.
Use 2 as the next digit of our solution. 
Result so far: 32.0
If we take 1042 away from 1562, we end up with 520.
Append the next digit (9) from the dividend to 520 and continue with: 5209 / 521

Going ahead to step 6:
521 goes into 5209 9 times with a remainder of 520.
Use 9 as the next digit of our solution. 
Result so far: 329.0
If we subtract 4689 from 5209, we get 520.
Include the next digit (5) from the dividend after 520, then repeat: 5205 / 521

Let's proceed to step 7:
If we divide 5205 by 521, we get 9 and a remainder of 516.
Put 9 as the next digit of the answer. 
Result so far: 3299.0
The remainder is 516 after subtracting 4689 from 5205.
Bring next digit (3) of the dividend behind the 516 and repeat the process: 5163 / 521

Step 8:
5163 divided by 521 is 9 with a remainder of 474.
Put 9 as the next digit of the answer. 
Result so far: 32999.0
Subtracting 4689 from 5163 leaves us with 474.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4740, and continue the process.

Moving on to step 9:
The number 521 fits into 4740 9 times, leaving a remainder of 51.
Write down 9 as next digit of the result. 
Result so far: 32999.9
The remainder is 51 after subtracting 4689 from 4740.
Since there are no more digits in the dividend, we add a zero to the remainder making it 510, and continue the process.

Advancing to step 10:
When dividing 510 by 521, we get 0 with a remainder of 510.
The number 0 becomes the next digit in our result. 
Result so far: 32999.9
The remainder is 510 after subtracting 0 from 510.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5100, and continue the process.

Step 11:
521 can be fit into 5100 9 times, resulting in a remainder of 411.
Put 9 as the next digit of the answer. 
Result so far: 32999.909
If we take 4689 away from 5100, we end up with 411.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4110, and continue the process.

On to step 12:
4110 divided by 521 is 7 with a remainder of 463.
The number 7 becomes the next digit in our result. 
Result so far: 32999.9097
Deduct 3647 from 4110 and we're left with 463.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4630, and continue the process.

Moving on to step 13:
4630 divided by 521 is 8 with a remainder of 462.
Use 8 as the next digit of our solution. 
Result so far: 32999.90978
If we take 4168 away from 4630, we end up with 462.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4620, and continue the process.

Going ahead to step 14:
4620 divided by 521 is 8 with a remainder of 452.
Put 8 as the next digit of the answer. 
Result so far: 32999.909788
If we take 4168 away from 4620, we end up with 452.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4520, and continue the process.

In conclusion, the division gives 32999.909788 with a balance of 4.52e-05.