99220207 ÷ 325 
The aim is to understand the frequency of 325 in 99220207.

On to step 1:
9 divided by 325 is 0 with a remainder of 9.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 9 to get 9.
Append the next digit (9) from the dividend to 9 and continue with: 99 / 325

On to step 2:
99 divided by 325 is 0 with a remainder of 99.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 99, we end up with 99.
Append the next digit (2) from the dividend to 99 and continue with: 992 / 325

Step 3:
If we divide 992 by 325, we get 3 and a remainder of 17.
Record the quotient 3 as the next digit in the result. 
Result so far: 3.0
Deduct 975 from 992 and we're left with 17.
Fetch the next digit (2) from the dividend, attach it to 17 and continue: 172 / 325

Step 4:
When dividing 172 by 325, we get 0 with a remainder of 172.
Record the quotient 0 as the next digit in the result. 
Result so far: 30.0
If we take 0 away from 172, we end up with 172.
Grab the next digit (0) from the dividend, add it to 172, then carry on: 1720 / 325

Going ahead to step 5:
When dividing 1720 by 325, we get 5 with a remainder of 95.
Use 5 as the next digit of our solution. 
Result so far: 305.0
Deduct 1625 from 1720 and we're left with 95.
Append the next digit (2) from the dividend to 95 and continue with: 952 / 325

Moving on to step 6:
The number 325 fits into 952 2 times, leaving a remainder of 302.
Put 2 as the next digit of the answer. 
Result so far: 3052.0
Deduct 650 from 952 and we're left with 302.
Take the next digit (0) from the dividend and append it to 302, then repeat: 3020 / 325

Step 7:
The number 325 fits into 3020 9 times, leaving a remainder of 95.
Record the quotient 9 as the next digit in the result. 
Result so far: 30529.0
The remainder is 95 after subtracting 2925 from 3020.
Bring next digit (7) of the dividend behind the 95 and repeat the process: 957 / 325

Advancing to step 8:
957 divided by 325 is 2 with a remainder of 307.
Put 2 as the next digit of the answer. 
Result so far: 305292.0
Subtracting 650 from 957 leaves us with 307.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3070, and continue the process.

Let's proceed to step 9:
3070 divided by 325 is 9 with a remainder of 145.
Use 9 as the next digit of our solution. 
Result so far: 305292.9
Subtract 2925 from 3070 to get 145.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1450, and continue the process.

Moving on to step 10:
If we divide 1450 by 325, we get 4 and a remainder of 150.
Put 4 as the next digit of the answer. 
Result so far: 305292.94
If we take 1300 away from 1450, we end up with 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1500, and continue the process.

Let's proceed to step 11:
325 can be fit into 1500 4 times, resulting in a remainder of 200.
Record the quotient 4 as the next digit in the result. 
Result so far: 305292.944
Subtracting 1300 from 1500 leaves us with 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

After the division, we end up with 305292.944 and a remainder of 0.02.