Let's divide 18910533 by 666
The aim is to understand the frequency of 666 in 18910533.

Step 1:
666 can be fit into 1 0 times, resulting in a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Include the next digit (8) from the dividend after 1, then repeat: 18 / 666

Step 2:
The number 666 fits into 18 0 times, leaving a remainder of 18.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 18, we get 18.
Include the next digit (9) from the dividend after 18, then repeat: 189 / 666

Moving on to step 3:
The number 666 fits into 189 0 times, leaving a remainder of 189.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 189, we get 189.
Grab the next digit (1) from the dividend, add it to 189, then carry on: 1891 / 666

Going ahead to step 4:
1891 divided by 666 is 2 with a remainder of 559.
The next digit of our result is 2. 
Result so far: 2.0
Subtract 1332 from 1891 to get 559.
Include the next digit (0) from the dividend after 559, then repeat: 5590 / 666

Let's proceed to step 5:
5590 divided by 666 is 8 with a remainder of 262.
Use 8 as the next digit of our solution. 
Result so far: 28.0
Subtract 5328 from 5590 to get 262.
Fetch the next digit (5) from the dividend, attach it to 262 and continue: 2625 / 666

Advancing to step 6:
2625 divided by 666 is 3 with a remainder of 627.
The next digit of our result is 3. 
Result so far: 283.0
If we subtract 1998 from 2625, we get 627.
Include the next digit (3) from the dividend after 627, then repeat: 6273 / 666

Step 7:
6273 divided by 666 is 9 with a remainder of 279.
The number 9 becomes the next digit in our result. 
Result so far: 2839.0
If we take 5994 away from 6273, we end up with 279.
Grab the next digit (3) from the dividend, add it to 279, then carry on: 2793 / 666

Moving on to step 8:
666 can be fit into 2793 4 times, resulting in a remainder of 129.
The next digit of our result is 4. 
Result so far: 28394.0
Subtracting 2664 from 2793 leaves us with 129.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1290, and continue the process.

Moving on to step 9:
1290 divided by 666 is 1 with a remainder of 624.
Write down 1 as next digit of the result. 
Result so far: 28394.1
If we take 666 away from 1290, we end up with 624.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6240, and continue the process.

Step 10:
The number 666 fits into 6240 9 times, leaving a remainder of 246.
Put 9 as the next digit of the answer. 
Result so far: 28394.19
Subtract 5994 from 6240 to get 246.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2460, and continue the process.

Moving on to step 11:
2460 divided by 666 is 3 with a remainder of 462.
Put 3 as the next digit of the answer. 
Result so far: 28394.193
If we take 1998 away from 2460, we end up with 462.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4620, and continue the process.

Going ahead to step 12:
666 can be fit into 4620 6 times, resulting in a remainder of 624.
Record the quotient 6 as the next digit in the result. 
Result so far: 28394.1936
If we subtract 3996 from 4620, we get 624.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6240, and continue the process.

On to step 13:
If we divide 6240 by 666, we get 9 and a remainder of 246.
Put 9 as the next digit of the answer. 
Result so far: 28394.19369
Subtracting 5994 from 6240 leaves us with 246.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2460, and continue the process.

On to step 14:
The number 666 fits into 2460 3 times, leaving a remainder of 462.
Record the quotient 3 as the next digit in the result. 
Result so far: 28394.193693
Deduct 1998 from 2460 and we're left with 462.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4620, and continue the process.

Let's proceed to step 15:
If we divide 4620 by 666, we get 6 and a remainder of 624.
The number 6 becomes the next digit in our result. 
Result so far: 28394.1936936
Subtracting 3996 from 4620 leaves us with 624.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6240, and continue the process.

Advancing to step 16:
6240 divided by 666 is 9 with a remainder of 246.
Write down 9 as next digit of the result. 
Result so far: 28394.19369369
The remainder is 246 after subtracting 5994 from 6240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2460, and continue the process.

The quotient of the division is 28394.19369369, and the remainder is 2.46e-07.