We divide 42099421 by 330
The aim is to understand the frequency of 330 in 42099421.

Let's proceed to step 1:
If we divide 4 by 330, we get 0 and a remainder of 4.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 4 and we're left with 4.
Take the next digit (2) from the dividend and append it to 4, then repeat: 42 / 330

Advancing to step 2:
330 goes into 42 0 times with a remainder of 42.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 42 leaves us with 42.
Grab the next digit (0) from the dividend, add it to 42, then carry on: 420 / 330

On to step 3:
420 divided by 330 is 1 with a remainder of 90.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtracting 330 from 420 leaves us with 90.
Include the next digit (9) from the dividend after 90, then repeat: 909 / 330

Moving on to step 4:
When dividing 909 by 330, we get 2 with a remainder of 249.
Put 2 as the next digit of the answer. 
Result so far: 12.0
Deduct 660 from 909 and we're left with 249.
Include the next digit (9) from the dividend after 249, then repeat: 2499 / 330

Moving on to step 5:
The number 330 fits into 2499 7 times, leaving a remainder of 189.
The number 7 becomes the next digit in our result. 
Result so far: 127.0
The remainder is 189 after subtracting 2310 from 2499.
Append the next digit (4) from the dividend to 189 and continue with: 1894 / 330

Going ahead to step 6:
330 goes into 1894 5 times with a remainder of 244.
Put 5 as the next digit of the answer. 
Result so far: 1275.0
Deduct 1650 from 1894 and we're left with 244.
Grab the next digit (2) from the dividend, add it to 244, then carry on: 2442 / 330

Going ahead to step 7:
If we divide 2442 by 330, we get 7 and a remainder of 132.
Record the quotient 7 as the next digit in the result. 
Result so far: 12757.0
If we take 2310 away from 2442, we end up with 132.
Grab the next digit (1) from the dividend, add it to 132, then carry on: 1321 / 330

Let's proceed to step 8:
330 goes into 1321 4 times with a remainder of 1.
Write down 4 as next digit of the result. 
Result so far: 127574.0
If we take 1320 away from 1321, we end up with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Going ahead to step 9:
330 goes into 10 0 times with a remainder of 10.
The number 0 becomes the next digit in our result. 
Result so far: 127574.0
Subtract 0 from 10 to get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Moving on to step 10:
When dividing 100 by 330, we get 0 with a remainder of 100.
Write down 0 as next digit of the result. 
Result so far: 127574.0
If we take 0 away from 100, we end up with 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

Our division results in 127574.0 with a remaining 0.1.