We look at the division of 521096 by 320 
The aim is to understand the frequency of 320 in 521096.

Step 1:
5 divided by 320 is 0 with a remainder of 5.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 5 leaves us with 5.
Bring next digit (2) of the dividend behind the 5 and repeat the process: 52 / 320

Step 2:
52 divided by 320 is 0 with a remainder of 52.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 52 to get 52.
Append the next digit (1) from the dividend to 52 and continue with: 521 / 320

Moving on to step 3:
When dividing 521 by 320, we get 1 with a remainder of 201.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we take 320 away from 521, we end up with 201.
Grab the next digit (0) from the dividend, add it to 201, then carry on: 2010 / 320

Let's proceed to step 4:
320 goes into 2010 6 times with a remainder of 90.
The next digit of our result is 6. 
Result so far: 16.0
Subtracting 1920 from 2010 leaves us with 90.
Take the next digit (9) from the dividend and append it to 90, then repeat: 909 / 320

Advancing to step 5:
909 divided by 320 is 2 with a remainder of 269.
The next digit of our result is 2. 
Result so far: 162.0
The remainder is 269 after subtracting 640 from 909.
Bring next digit (6) of the dividend behind the 269 and repeat the process: 2696 / 320

Let's proceed to step 6:
If we divide 2696 by 320, we get 8 and a remainder of 136.
Record the quotient 8 as the next digit in the result. 
Result so far: 1628.0
Subtracting 2560 from 2696 leaves us with 136.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1360, and continue the process.

Let's proceed to step 7:
When dividing 1360 by 320, we get 4 with a remainder of 80.
The next digit of our result is 4. 
Result so far: 1628.4
Subtracting 1280 from 1360 leaves us with 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Advancing to step 8:
320 goes into 800 2 times with a remainder of 160.
Record the quotient 2 as the next digit in the result. 
Result so far: 1628.42
Subtracting 640 from 800 leaves us with 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

Moving on to step 9:
320 can be fit into 1600 5 times, resulting in a remainder of 0.
The number 5 becomes the next digit in our result. 
Result so far: 1628.425
If we subtract 1600 from 1600, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Advancing to step 10:
If we divide 0 by 320, we get 0 and a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 1628.425
If we subtract 0 from 0, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

On to step 11:
If we divide 0 by 320, we get 0 and a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 1628.425
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The quotient of the division is 1628.425, and the remainder is 0.0.