We're dividing 66146360 by 366 
The aim is to understand the frequency of 366 in 66146360.

On to step 1:
The number 366 fits into 6 0 times, leaving 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.
Grab the next digit (6) from the dividend, add it to 6, then carry on: 66 / 366

Let's proceed to step 2:
366 goes into 66 0 times with a remainder of 66.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 66 to get 66.
Include the next digit (1) from the dividend after 66, then repeat: 661 / 366

On to step 3:
366 can be fit into 661 1 times, resulting in a remainder of 295.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we take 366 away from 661, we end up with 295.
Include the next digit (4) from the dividend after 295, then repeat: 2954 / 366

On to step 4:
2954 divided by 366 is 8 with a remainder of 26.
Put 8 as the next digit of the answer. 
Result so far: 18.0
Subtracting 2928 from 2954 leaves us with 26.
Append the next digit (6) from the dividend to 26 and continue with: 266 / 366

Advancing to step 5:
If we divide 266 by 366, we get 0 and a remainder of 266.
Record the quotient 0 as the next digit in the result. 
Result so far: 180.0
If we subtract 0 from 266, we get 266.
Fetch the next digit (3) from the dividend, attach it to 266 and continue: 2663 / 366

Advancing to step 6:
The number 366 fits into 2663 7 times, leaving a remainder of 101.
Write down 7 as next digit of the result. 
Result so far: 1807.0
Subtracting 2562 from 2663 leaves us with 101.
Grab the next digit (6) from the dividend, add it to 101, then carry on: 1016 / 366

Advancing to step 7:
1016 divided by 366 is 2 with a remainder of 284.
Use 2 as the next digit of our solution. 
Result so far: 18072.0
Subtract 732 from 1016 to get 284.
Include the next digit (0) from the dividend after 284, then repeat: 2840 / 366

Moving on to step 8:
The number 366 fits into 2840 7 times, leaving a remainder of 278.
The next digit of our result is 7. 
Result so far: 180727.0
Subtract 2562 from 2840 to get 278.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2780, and continue the process.

Step 9:
366 goes into 2780 7 times with a remainder of 218.
Put 7 as the next digit of the answer. 
Result so far: 180727.7
If we take 2562 away from 2780, we end up with 218.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2180, and continue the process.

Advancing to step 10:
366 can be fit into 2180 5 times, resulting in a remainder of 350.
The next digit of our result is 5. 
Result so far: 180727.75
Deduct 1830 from 2180 and we're left with 350.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3500, and continue the process.

Moving on to step 11:
366 goes into 3500 9 times with a remainder of 206.
Use 9 as the next digit of our solution. 
Result so far: 180727.759
Deduct 3294 from 3500 and we're left with 206.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2060, and continue the process.

Moving on to step 12:
When dividing 2060 by 366, we get 5 with a remainder of 230.
Put 5 as the next digit of the answer. 
Result so far: 180727.7595
If we subtract 1830 from 2060, we get 230.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2300, and continue the process.

Moving on to step 13:
2300 divided by 366 is 6 with a remainder of 104.
Use 6 as the next digit of our solution. 
Result so far: 180727.75956
Deduct 2196 from 2300 and we're left with 104.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1040, and continue the process.

Step 14:
366 goes into 1040 2 times with a remainder of 308.
The next digit of our result is 2. 
Result so far: 180727.759562
If we subtract 732 from 1040, we get 308.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3080, and continue the process.

Step 15:
If we divide 3080 by 366, we get 8 and a remainder of 152.
The number 8 becomes the next digit in our result. 
Result so far: 180727.7595628
If we subtract 2928 from 3080, we get 152.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1520, and continue the process.

Step 16:
1520 divided by 366 is 4 with a remainder of 56.
Use 4 as the next digit of our solution. 
Result so far: 180727.75956284
If we take 1464 away from 1520, we end up with 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Our division results in 180727.75956284 with a remaining 5.6e-08.