66402888 divided by 618 
The aim is to understand the frequency of 618 in 66402888.

Let's proceed to step 1:
6 divided by 618 is 0 with a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Include the next digit (6) from the dividend after 6, then repeat: 66 / 618

Step 2:
66 divided by 618 is 0 with a remainder of 66.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 66 after subtracting 0 from 66.
Take the next digit (4) from the dividend and append it to 66, then repeat: 664 / 618

Step 3:
The number 618 fits into 664 1 times, leaving a remainder of 46.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we subtract 618 from 664, we get 46.
Fetch the next digit (0) from the dividend, attach it to 46 and continue: 460 / 618

Let's proceed to step 4:
When dividing 460 by 618, we get 0 with a remainder of 460.
Record the quotient 0 as the next digit in the result. 
Result so far: 10.0
If we subtract 0 from 460, we get 460.
Grab the next digit (2) from the dividend, add it to 460, then carry on: 4602 / 618

Step 5:
618 goes into 4602 7 times with a remainder of 276.
The number 7 becomes the next digit in our result. 
Result so far: 107.0
Subtracting 4326 from 4602 leaves us with 276.
Take the next digit (8) from the dividend and append it to 276, then repeat: 2768 / 618

Moving on to step 6:
The number 618 fits into 2768 4 times, leaving a remainder of 296.
The next digit of our result is 4. 
Result so far: 1074.0
Subtracting 2472 from 2768 leaves us with 296.
Fetch the next digit (8) from the dividend, attach it to 296 and continue: 2968 / 618

Going ahead to step 7:
618 can be fit into 2968 4 times, resulting in a remainder of 496.
Use 4 as the next digit of our solution. 
Result so far: 10744.0
If we take 2472 away from 2968, we end up with 496.
Include the next digit (8) from the dividend after 496, then repeat: 4968 / 618

Step 8:
If we divide 4968 by 618, we get 8 and a remainder of 24.
Record the quotient 8 as the next digit in the result. 
Result so far: 107448.0
Deduct 4944 from 4968 and we're left with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

On to step 9:
If we divide 240 by 618, we get 0 and a remainder of 240.
Record the quotient 0 as the next digit in the result. 
Result so far: 107448.0
Deduct 0 from 240 and we're left with 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2400, and continue the process.

Going ahead to step 10:
The number 618 fits into 2400 3 times, leaving a remainder of 546.
Record the quotient 3 as the next digit in the result. 
Result so far: 107448.03
Deduct 1854 from 2400 and we're left with 546.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5460, and continue the process.

Step 11:
The number 618 fits into 5460 8 times, leaving a remainder of 516.
Put 8 as the next digit of the answer. 
Result so far: 107448.038
If we subtract 4944 from 5460, we get 516.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5160, and continue the process.

Step 12:
618 goes into 5160 8 times with a remainder of 216.
The next digit of our result is 8. 
Result so far: 107448.0388
Subtracting 4944 from 5160 leaves us with 216.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2160, and continue the process.

The quotient of the division is 107448.0388, and the remainder is 0.00216.