We look at the division of 49353384 by 666 
The aim is to understand the frequency of 666 in 49353384.

On to step 1:
666 can be fit into 4 0 times, resulting in a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 4 leaves us with 4.
Append the next digit (9) from the dividend to 4 and continue with: 49 / 666

Advancing to step 2:
If we divide 49 by 666, we get 0 and a remainder of 49.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 49 to get 49.
Grab the next digit (3) from the dividend, add it to 49, then carry on: 493 / 666

Advancing to step 3:
666 goes into 493 0 times with a remainder of 493.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 493 to get 493.
Fetch the next digit (5) from the dividend, attach it to 493 and continue: 4935 / 666

Moving on to step 4:
666 can be fit into 4935 7 times, resulting in a remainder of 273.
The number 7 becomes the next digit in our result. 
Result so far: 7.0
Subtracting 4662 from 4935 leaves us with 273.
Grab the next digit (3) from the dividend, add it to 273, then carry on: 2733 / 666

Going ahead to step 5:
If we divide 2733 by 666, we get 4 and a remainder of 69.
Write down 4 as next digit of the result. 
Result so far: 74.0
Deduct 2664 from 2733 and we're left with 69.
Take the next digit (3) from the dividend and append it to 69, then repeat: 693 / 666

Step 6:
693 divided by 666 is 1 with a remainder of 27.
The next digit of our result is 1. 
Result so far: 741.0
The remainder is 27 after subtracting 666 from 693.
Append the next digit (8) from the dividend to 27 and continue with: 278 / 666

Advancing to step 7:
278 divided by 666 is 0 with a remainder of 278.
The next digit of our result is 0. 
Result so far: 7410.0
Subtract 0 from 278 to get 278.
Include the next digit (4) from the dividend after 278, then repeat: 2784 / 666

Let's proceed to step 8:
When dividing 2784 by 666, we get 4 with a remainder of 120.
Use 4 as the next digit of our solution. 
Result so far: 74104.0
The remainder is 120 after subtracting 2664 from 2784.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

Let's proceed to step 9:
1200 divided by 666 is 1 with a remainder of 534.
The next digit of our result is 1. 
Result so far: 74104.1
If we subtract 666 from 1200, we get 534.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5340, and continue the process.

Let's proceed to step 10:
When dividing 5340 by 666, we get 8 with a remainder of 12.
Record the quotient 8 as the next digit in the result. 
Result so far: 74104.18
The remainder is 12 after subtracting 5328 from 5340.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Advancing to step 11:
120 divided by 666 is 0 with a remainder of 120.
Put 0 as the next digit of the answer. 
Result so far: 74104.18
Subtracting 0 from 120 leaves us with 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

Advancing to step 12:
666 goes into 1200 1 times with a remainder of 534.
Put 1 as the next digit of the answer. 
Result so far: 74104.1801
The remainder is 534 after subtracting 666 from 1200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5340, and continue the process.

Going ahead to step 13:
666 can be fit into 5340 8 times, resulting in a remainder of 12.
Use 8 as the next digit of our solution. 
Result so far: 74104.18018
If we take 5328 away from 5340, we end up with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Let's proceed to step 14:
When dividing 120 by 666, we get 0 with a remainder of 120.
Record the quotient 0 as the next digit in the result. 
Result so far: 74104.18018
Subtract 0 from 120 to get 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

Advancing to step 15:
1200 divided by 666 is 1 with a remainder of 534.
The number 1 becomes the next digit in our result. 
Result so far: 74104.1801801
Subtract 666 from 1200 to get 534.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5340, and continue the process.

Let's proceed to step 16:
666 goes into 5340 8 times with a remainder of 12.
Use 8 as the next digit of our solution. 
Result so far: 74104.18018018
If we subtract 5328 from 5340, we get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

The final result is 74104.18018018 with a remainder of 1.2e-08.