Let's divide 66018333 by 999
The aim is to understand the frequency of 999 in 66018333.

Going ahead to step 1:
When dividing 6 by 999, we get 0 with a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Include the next digit (6) from the dividend after 6, then repeat: 66 / 999

Moving on to step 2:
When dividing 66 by 999, we get 0 with a remainder of 66.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 66, we get 66.
Bring next digit (0) of the dividend behind the 66 and repeat the process: 660 / 999

Let's proceed to step 3:
The number 999 fits into 660 0 times, leaving a remainder of 660.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 660 leaves us with 660.
Grab the next digit (1) from the dividend, add it to 660, then carry on: 6601 / 999

Let's proceed to step 4:
6601 divided by 999 is 6 with a remainder of 607.
Write down 6 as next digit of the result. 
Result so far: 6.0
Subtracting 5994 from 6601 leaves us with 607.
Take the next digit (8) from the dividend and append it to 607, then repeat: 6078 / 999

Going ahead to step 5:
The number 999 fits into 6078 6 times, leaving a remainder of 84.
Use 6 as the next digit of our solution. 
Result so far: 66.0
Subtract 5994 from 6078 to get 84.
Bring next digit (3) of the dividend behind the 84 and repeat the process: 843 / 999

On to step 6:
999 can be fit into 843 0 times, resulting in a remainder of 843.
The next digit of our result is 0. 
Result so far: 660.0
Subtract 0 from 843 to get 843.
Grab the next digit (3) from the dividend, add it to 843, then carry on: 8433 / 999

Advancing to step 7:
The number 999 fits into 8433 8 times, leaving a remainder of 441.
Put 8 as the next digit of the answer. 
Result so far: 6608.0
The remainder is 441 after subtracting 7992 from 8433.
Append the next digit (3) from the dividend to 441 and continue with: 4413 / 999

Going ahead to step 8:
999 can be fit into 4413 4 times, resulting in a remainder of 417.
Write down 4 as next digit of the result. 
Result so far: 66084.0
Subtracting 3996 from 4413 leaves us with 417.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4170, and continue the process.

Moving on to step 9:
4170 divided by 999 is 4 with a remainder of 174.
Record the quotient 4 as the next digit in the result. 
Result so far: 66084.4
If we take 3996 away from 4170, we end up with 174.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1740, and continue the process.

Advancing to step 10:
999 can be fit into 1740 1 times, resulting in a remainder of 741.
The next digit of our result is 1. 
Result so far: 66084.41
If we subtract 999 from 1740, we get 741.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7410, and continue the process.

Let's proceed to step 11:
If we divide 7410 by 999, we get 7 and a remainder of 417.
Write down 7 as next digit of the result. 
Result so far: 66084.417
Subtract 6993 from 7410 to get 417.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4170, and continue the process.

Moving on to step 12:
When dividing 4170 by 999, we get 4 with a remainder of 174.
The next digit of our result is 4. 
Result so far: 66084.4174
If we take 3996 away from 4170, we end up with 174.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1740, and continue the process.

Advancing to step 13:
When dividing 1740 by 999, we get 1 with a remainder of 741.
The next digit of our result is 1. 
Result so far: 66084.41741
Subtract 999 from 1740 to get 741.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7410, and continue the process.

Let's proceed to step 14:
If we divide 7410 by 999, we get 7 and a remainder of 417.
The next digit of our result is 7. 
Result so far: 66084.417417
Subtracting 6993 from 7410 leaves us with 417.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4170, and continue the process.

Going ahead to step 15:
If we divide 4170 by 999, we get 4 and a remainder of 174.
The number 4 becomes the next digit in our result. 
Result so far: 66084.4174174
Subtracting 3996 from 4170 leaves us with 174.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1740, and continue the process.

Going ahead to step 16:
1740 divided by 999 is 1 with a remainder of 741.
Record the quotient 1 as the next digit in the result. 
Result so far: 66084.41741741
Deduct 999 from 1740 and we're left with 741.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7410, and continue the process.

In conclusion, the division gives 66084.41741741 with a balance of 7.41e-07.