We look at the division of 47636487 by 666 
The aim is to understand the frequency of 666 in 47636487.

On to step 1:
When dividing 4 by 666, we get 0 with a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 4, we get 4.
Grab the next digit (7) from the dividend, add it to 4, then carry on: 47 / 666

Advancing to step 2:
666 goes into 47 0 times with a remainder of 47.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 47, we end up with 47.
Include the next digit (6) from the dividend after 47, then repeat: 476 / 666

Advancing to step 3:
The number 666 fits into 476 0 times, leaving a remainder of 476.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 476 after subtracting 0 from 476.
Append the next digit (3) from the dividend to 476 and continue with: 4763 / 666

Let's proceed to step 4:
4763 divided by 666 is 7 with a remainder of 101.
The number 7 becomes the next digit in our result. 
Result so far: 7.0
If we subtract 4662 from 4763, we get 101.
Append the next digit (6) from the dividend to 101 and continue with: 1016 / 666

On to step 5:
1016 divided by 666 is 1 with a remainder of 350.
The next digit of our result is 1. 
Result so far: 71.0
The remainder is 350 after subtracting 666 from 1016.
Bring next digit (4) of the dividend behind the 350 and repeat the process: 3504 / 666

Let's proceed to step 6:
The number 666 fits into 3504 5 times, leaving a remainder of 174.
Record the quotient 5 as the next digit in the result. 
Result so far: 715.0
Subtracting 3330 from 3504 leaves us with 174.
Bring next digit (8) of the dividend behind the 174 and repeat the process: 1748 / 666

On to step 7:
1748 divided by 666 is 2 with a remainder of 416.
The next digit of our result is 2. 
Result so far: 7152.0
Subtracting 1332 from 1748 leaves us with 416.
Include the next digit (7) from the dividend after 416, then repeat: 4167 / 666

Step 8:
The number 666 fits into 4167 6 times, leaving a remainder of 171.
Use 6 as the next digit of our solution. 
Result so far: 71526.0
If we take 3996 away from 4167, we end up with 171.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1710, and continue the process.

Let's proceed to step 9:
The number 666 fits into 1710 2 times, leaving a remainder of 378.
Record the quotient 2 as the next digit in the result. 
Result so far: 71526.2
If we subtract 1332 from 1710, we get 378.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3780, and continue the process.

Let's proceed to step 10:
If we divide 3780 by 666, we get 5 and a remainder of 450.
The next digit of our result is 5. 
Result so far: 71526.25
Subtracting 3330 from 3780 leaves us with 450.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4500, and continue the process.

Step 11:
4500 divided by 666 is 6 with a remainder of 504.
Record the quotient 6 as the next digit in the result. 
Result so far: 71526.256
Subtracting 3996 from 4500 leaves us with 504.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5040, and continue the process.

Going ahead to step 12:
666 goes into 5040 7 times with a remainder of 378.
Put 7 as the next digit of the answer. 
Result so far: 71526.2567
The remainder is 378 after subtracting 4662 from 5040.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3780, and continue the process.

Advancing to step 13:
The number 666 fits into 3780 5 times, leaving a remainder of 450.
The next digit of our result is 5. 
Result so far: 71526.25675
Subtract 3330 from 3780 to get 450.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4500, and continue the process.

Let's proceed to step 14:
4500 divided by 666 is 6 with a remainder of 504.
Record the quotient 6 as the next digit in the result. 
Result so far: 71526.256756
Deduct 3996 from 4500 and we're left with 504.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5040, and continue the process.

Going ahead to step 15:
666 can be fit into 5040 7 times, resulting in a remainder of 378.
The next digit of our result is 7. 
Result so far: 71526.2567567
The remainder is 378 after subtracting 4662 from 5040.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3780, and continue the process.

Going ahead to step 16:
If we divide 3780 by 666, we get 5 and a remainder of 450.
The next digit of our result is 5. 
Result so far: 71526.25675675
If we subtract 3330 from 3780, we get 450.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4500, and continue the process.

Our division results in 71526.25675675 with a remaining 4.5e-07.