We look at the division of 80570054 by 330 
The aim is to understand the frequency of 330 in 80570054.

On to step 1:
330 can be fit into 8 0 times, resulting in a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Grab the next digit (0) from the dividend, add it to 8, then carry on: 80 / 330

On to step 2:
330 can be fit into 80 0 times, resulting in a remainder of 80.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 80 to get 80.
Grab the next digit (5) from the dividend, add it to 80, then carry on: 805 / 330

On to step 3:
330 goes into 805 2 times with a remainder of 145.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
Deduct 660 from 805 and we're left with 145.
Fetch the next digit (7) from the dividend, attach it to 145 and continue: 1457 / 330

Moving on to step 4:
When dividing 1457 by 330, we get 4 with a remainder of 137.
Write down 4 as next digit of the result. 
Result so far: 24.0
The remainder is 137 after subtracting 1320 from 1457.
Append the next digit (0) from the dividend to 137 and continue with: 1370 / 330

Advancing to step 5:
1370 divided by 330 is 4 with a remainder of 50.
The number 4 becomes the next digit in our result. 
Result so far: 244.0
Subtracting 1320 from 1370 leaves us with 50.
Bring next digit (0) of the dividend behind the 50 and repeat the process: 500 / 330

On to step 6:
330 goes into 500 1 times with a remainder of 170.
The next digit of our result is 1. 
Result so far: 2441.0
Subtract 330 from 500 to get 170.
Include the next digit (5) from the dividend after 170, then repeat: 1705 / 330

Let's proceed to step 7:
330 can be fit into 1705 5 times, resulting in a remainder of 55.
Write down 5 as next digit of the result. 
Result so far: 24415.0
Deduct 1650 from 1705 and we're left with 55.
Append the next digit (4) from the dividend to 55 and continue with: 554 / 330

Advancing to step 8:
When dividing 554 by 330, we get 1 with a remainder of 224.
The next digit of our result is 1. 
Result so far: 244151.0
If we take 330 away from 554, we end up with 224.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2240, and continue the process.

On to step 9:
2240 divided by 330 is 6 with a remainder of 260.
Put 6 as the next digit of the answer. 
Result so far: 244151.6
Subtract 1980 from 2240 to get 260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2600, and continue the process.

Advancing to step 10:
2600 divided by 330 is 7 with a remainder of 290.
The next digit of our result is 7. 
Result so far: 244151.67
Deduct 2310 from 2600 and we're left with 290.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2900, and continue the process.

Step 11:
The number 330 fits into 2900 8 times, leaving a remainder of 260.
The next digit of our result is 8. 
Result so far: 244151.678
If we take 2640 away from 2900, we end up with 260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2600, and continue the process.

Advancing to step 12:
330 goes into 2600 7 times with a remainder of 290.
The number 7 becomes the next digit in our result. 
Result so far: 244151.6787
Subtract 2310 from 2600 to get 290.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2900, and continue the process.

Moving on to step 13:
2900 divided by 330 is 8 with a remainder of 260.
Record the quotient 8 as the next digit in the result. 
Result so far: 244151.67878
The remainder is 260 after subtracting 2640 from 2900.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2600, and continue the process.

Step 14:
330 goes into 2600 7 times with a remainder of 290.
The number 7 becomes the next digit in our result. 
Result so far: 244151.678787
If we subtract 2310 from 2600, we get 290.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2900, and continue the process.

Going ahead to step 15:
330 can be fit into 2900 8 times, resulting in a remainder of 260.
The next digit of our result is 8. 
Result so far: 244151.6787878
If we subtract 2640 from 2900, we get 260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2600, and continue the process.

Going ahead to step 16:
2600 divided by 330 is 7 with a remainder of 290.
Record the quotient 7 as the next digit in the result. 
Result so far: 244151.67878787
If we take 2310 away from 2600, we end up with 290.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2900, and continue the process.

The final result is 244151.67878787 with a remainder of 2.9e-07.