16390955 divided by 511 
The aim is to understand the frequency of 511 in 16390955.

On to step 1:
1 divided by 511 is 0 with a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Take the next digit (6) from the dividend and append it to 1, then repeat: 16 / 511

On to step 2:
511 can be fit into 16 0 times, resulting in a remainder of 16.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 16 leaves us with 16.
Fetch the next digit (3) from the dividend, attach it to 16 and continue: 163 / 511

On to step 3:
163 divided by 511 is 0 with a remainder of 163.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 163, we end up with 163.
Take the next digit (9) from the dividend and append it to 163, then repeat: 1639 / 511

Advancing to step 4:
1639 divided by 511 is 3 with a remainder of 106.
Record the quotient 3 as the next digit in the result. 
Result so far: 3.0
Subtracting 1533 from 1639 leaves us with 106.
Fetch the next digit (0) from the dividend, attach it to 106 and continue: 1060 / 511

Going ahead to step 5:
If we divide 1060 by 511, we get 2 and a remainder of 38.
Record the quotient 2 as the next digit in the result. 
Result so far: 32.0
Subtracting 1022 from 1060 leaves us with 38.
Grab the next digit (9) from the dividend, add it to 38, then carry on: 389 / 511

Step 6:
511 can be fit into 389 0 times, resulting in a remainder of 389.
Record the quotient 0 as the next digit in the result. 
Result so far: 320.0
Subtracting 0 from 389 leaves us with 389.
Include the next digit (5) from the dividend after 389, then repeat: 3895 / 511

On to step 7:
If we divide 3895 by 511, we get 7 and a remainder of 318.
Record the quotient 7 as the next digit in the result. 
Result so far: 3207.0
Deduct 3577 from 3895 and we're left with 318.
Include the next digit (5) from the dividend after 318, then repeat: 3185 / 511

Let's proceed to step 8:
511 goes into 3185 6 times with a remainder of 119.
Put 6 as the next digit of the answer. 
Result so far: 32076.0
If we take 3066 away from 3185, we end up with 119.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1190, and continue the process.

Moving on to step 9:
511 can be fit into 1190 2 times, resulting in a remainder of 168.
The next digit of our result is 2. 
Result so far: 32076.2
If we take 1022 away from 1190, we end up with 168.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1680, and continue the process.

On to step 10:
511 goes into 1680 3 times with a remainder of 147.
The number 3 becomes the next digit in our result. 
Result so far: 32076.23
If we subtract 1533 from 1680, we get 147.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1470, and continue the process.

On to step 11:
When dividing 1470 by 511, we get 2 with a remainder of 448.
Write down 2 as next digit of the result. 
Result so far: 32076.232
The remainder is 448 after subtracting 1022 from 1470.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4480, and continue the process.

Step 12:
When dividing 4480 by 511, we get 8 with a remainder of 392.
Write down 8 as next digit of the result. 
Result so far: 32076.2328
Subtract 4088 from 4480 to get 392.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3920, and continue the process.

Moving on to step 13:
511 can be fit into 3920 7 times, resulting in a remainder of 343.
The number 7 becomes the next digit in our result. 
Result so far: 32076.23287
If we subtract 3577 from 3920, we get 343.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3430, and continue the process.

Moving on to step 14:
When dividing 3430 by 511, we get 6 with a remainder of 364.
Write down 6 as next digit of the result. 
Result so far: 32076.232876
If we subtract 3066 from 3430, we get 364.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3640, and continue the process.

On to step 15:
3640 divided by 511 is 7 with a remainder of 63.
The next digit of our result is 7. 
Result so far: 32076.2328767
If we subtract 3577 from 3640, we get 63.
Since there are no more digits in the dividend, we add a zero to the remainder making it 630, and continue the process.

Moving on to step 16:
511 goes into 630 1 times with a remainder of 119.
Put 1 as the next digit of the answer. 
Result so far: 32076.23287671
Deduct 511 from 630 and we're left with 119.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1190, and continue the process.

The final result is 32076.23287671 with a remainder of 1.19e-07.