We divide 69256890 by 321
The aim is to understand the frequency of 321 in 69256890.

On to step 1:
If we divide 6 by 321, we get 0 and a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Bring next digit (9) of the dividend behind the 6 and repeat the process: 69 / 321

Step 2:
69 divided by 321 is 0 with a remainder of 69.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 69 to get 69.
Take the next digit (2) from the dividend and append it to 69, then repeat: 692 / 321

Step 3:
When dividing 692 by 321, we get 2 with a remainder of 50.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
If we subtract 642 from 692, we get 50.
Take the next digit (5) from the dividend and append it to 50, then repeat: 505 / 321

Moving on to step 4:
505 divided by 321 is 1 with a remainder of 184.
Write down 1 as next digit of the result. 
Result so far: 21.0
If we subtract 321 from 505, we get 184.
Bring next digit (6) of the dividend behind the 184 and repeat the process: 1846 / 321

Moving on to step 5:
321 goes into 1846 5 times with a remainder of 241.
Put 5 as the next digit of the answer. 
Result so far: 215.0
The remainder is 241 after subtracting 1605 from 1846.
Append the next digit (8) from the dividend to 241 and continue with: 2418 / 321

On to step 6:
The number 321 fits into 2418 7 times, leaving a remainder of 171.
Record the quotient 7 as the next digit in the result. 
Result so far: 2157.0
The remainder is 171 after subtracting 2247 from 2418.
Fetch the next digit (9) from the dividend, attach it to 171 and continue: 1719 / 321

Let's proceed to step 7:
321 can be fit into 1719 5 times, resulting in a remainder of 114.
Use 5 as the next digit of our solution. 
Result so far: 21575.0
If we subtract 1605 from 1719, we get 114.
Include the next digit (0) from the dividend after 114, then repeat: 1140 / 321

Moving on to step 8:
The number 321 fits into 1140 3 times, leaving a remainder of 177.
Use 3 as the next digit of our solution. 
Result so far: 215753.0
The remainder is 177 after subtracting 963 from 1140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1770, and continue the process.

On to step 9:
321 can be fit into 1770 5 times, resulting in a remainder of 165.
The next digit of our result is 5. 
Result so far: 215753.5
Subtracting 1605 from 1770 leaves us with 165.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1650, and continue the process.

On to step 10:
321 goes into 1650 5 times with a remainder of 45.
The next digit of our result is 5. 
Result so far: 215753.55
Subtracting 1605 from 1650 leaves us with 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

In conclusion, the division gives 215753.55 with a balance of 0.045.