We divide 21092388 by 325
The aim is to understand the frequency of 325 in 21092388.

Going ahead to step 1:
325 goes into 2 0 times with a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 2 after subtracting 0 from 2.
Fetch the next digit (1) from the dividend, attach it to 2 and continue: 21 / 325

Step 2:
325 can be fit into 21 0 times, resulting in a remainder of 21.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 21 to get 21.
Take the next digit (0) from the dividend and append it to 21, then repeat: 210 / 325

Advancing to step 3:
When dividing 210 by 325, we get 0 with a remainder of 210.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 210 and we're left with 210.
Append the next digit (9) from the dividend to 210 and continue with: 2109 / 325

On to step 4:
If we divide 2109 by 325, we get 6 and a remainder of 159.
Put 6 as the next digit of the answer. 
Result so far: 6.0
The remainder is 159 after subtracting 1950 from 2109.
Bring next digit (2) of the dividend behind the 159 and repeat the process: 1592 / 325

On to step 5:
When dividing 1592 by 325, we get 4 with a remainder of 292.
Write down 4 as next digit of the result. 
Result so far: 64.0
The remainder is 292 after subtracting 1300 from 1592.
Fetch the next digit (3) from the dividend, attach it to 292 and continue: 2923 / 325

Step 6:
325 can be fit into 2923 8 times, resulting in a remainder of 323.
The number 8 becomes the next digit in our result. 
Result so far: 648.0
The remainder is 323 after subtracting 2600 from 2923.
Append the next digit (8) from the dividend to 323 and continue with: 3238 / 325

Moving on to step 7:
When dividing 3238 by 325, we get 9 with a remainder of 313.
The number 9 becomes the next digit in our result. 
Result so far: 6489.0
Deduct 2925 from 3238 and we're left with 313.
Take the next digit (8) from the dividend and append it to 313, then repeat: 3138 / 325

Moving on to step 8:
When dividing 3138 by 325, we get 9 with a remainder of 213.
Put 9 as the next digit of the answer. 
Result so far: 64899.0
Deduct 2925 from 3138 and we're left with 213.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2130, and continue the process.

Moving on to step 9:
325 goes into 2130 6 times with a remainder of 180.
Record the quotient 6 as the next digit in the result. 
Result so far: 64899.6
Subtracting 1950 from 2130 leaves us with 180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1800, and continue the process.

Step 10:
325 can be fit into 1800 5 times, resulting in a remainder of 175.
The next digit of our result is 5. 
Result so far: 64899.65
If we subtract 1625 from 1800, we get 175.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1750, and continue the process.

Step 11:
When dividing 1750 by 325, we get 5 with a remainder of 125.
The number 5 becomes the next digit in our result. 
Result so far: 64899.655
Deduct 1625 from 1750 and we're left with 125.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1250, and continue the process.

The final result is 64899.655 with a remainder of 0.0125.