We're dividing 16981021 by 529 
The aim is to understand the frequency of 529 in 16981021.

On to step 1:
529 goes into 1 0 times with a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Append the next digit (6) from the dividend to 1 and continue with: 16 / 529

Going ahead to step 2:
16 divided by 529 is 0 with a remainder of 16.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 16, we end up with 16.
Append the next digit (9) from the dividend to 16 and continue with: 169 / 529

On to step 3:
529 goes into 169 0 times with a remainder of 169.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 169, we get 169.
Bring next digit (8) of the dividend behind the 169 and repeat the process: 1698 / 529

Step 4:
1698 divided by 529 is 3 with a remainder of 111.
The next digit of our result is 3. 
Result so far: 3.0
Subtracting 1587 from 1698 leaves us with 111.
Bring next digit (1) of the dividend behind the 111 and repeat the process: 1111 / 529

Moving on to step 5:
1111 divided by 529 is 2 with a remainder of 53.
Use 2 as the next digit of our solution. 
Result so far: 32.0
Deduct 1058 from 1111 and we're left with 53.
Fetch the next digit (0) from the dividend, attach it to 53 and continue: 530 / 529

Step 6:
The number 529 fits into 530 1 times, leaving a remainder of 1.
Put 1 as the next digit of the answer. 
Result so far: 321.0
If we subtract 529 from 530, we get 1.
Fetch the next digit (2) from the dividend, attach it to 1 and continue: 12 / 529

Step 7:
When dividing 12 by 529, we get 0 with a remainder of 12.
Use 0 as the next digit of our solution. 
Result so far: 3210.0
Subtracting 0 from 12 leaves us with 12.
Append the next digit (1) from the dividend to 12 and continue with: 121 / 529

Let's proceed to step 8:
121 divided by 529 is 0 with a remainder of 121.
Write down 0 as next digit of the result. 
Result so far: 32100.0
The remainder is 121 after subtracting 0 from 121.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1210, and continue the process.

On to step 9:
When dividing 1210 by 529, we get 2 with a remainder of 152.
The number 2 becomes the next digit in our result. 
Result so far: 32100.2
Subtract 1058 from 1210 to get 152.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1520, and continue the process.

On to step 10:
If we divide 1520 by 529, we get 2 and a remainder of 462.
The number 2 becomes the next digit in our result. 
Result so far: 32100.22
The remainder is 462 after subtracting 1058 from 1520.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4620, and continue the process.

The quotient of the division is 32100.22, and the remainder is 0.462.