We're dividing 66615841 by 476 
The aim is to understand the frequency of 476 in 66615841.

Step 1:
The number 476 fits into 6 0 times, leaving a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Append the next digit (6) from the dividend to 6 and continue with: 66 / 476

Moving on to step 2:
66 divided by 476 is 0 with a remainder of 66.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 66, we end up with 66.
Include the next digit (6) from the dividend after 66, then repeat: 666 / 476

Moving on to step 3:
If we divide 666 by 476, we get 1 and a remainder of 190.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtract 476 from 666 to get 190.
Append the next digit (1) from the dividend to 190 and continue with: 1901 / 476

Step 4:
1901 divided by 476 is 3 with a remainder of 473.
The number 3 becomes the next digit in our result. 
Result so far: 13.0
Deduct 1428 from 1901 and we're left with 473.
Fetch the next digit (5) from the dividend, attach it to 473 and continue: 4735 / 476

Advancing to step 5:
The number 476 fits into 4735 9 times, leaving a remainder of 451.
Put 9 as the next digit of the answer. 
Result so far: 139.0
If we subtract 4284 from 4735, we get 451.
Grab the next digit (8) from the dividend, add it to 451, then carry on: 4518 / 476

Let's proceed to step 6:
When dividing 4518 by 476, we get 9 with a remainder of 234.
The number 9 becomes the next digit in our result. 
Result so far: 1399.0
Subtract 4284 from 4518 to get 234.
Take the next digit (4) from the dividend and append it to 234, then repeat: 2344 / 476

On to step 7:
476 can be fit into 2344 4 times, resulting in a remainder of 440.
Write down 4 as next digit of the result. 
Result so far: 13994.0
Deduct 1904 from 2344 and we're left with 440.
Take the next digit (1) from the dividend and append it to 440, then repeat: 4401 / 476

Step 8:
If we divide 4401 by 476, we get 9 and a remainder of 117.
The number 9 becomes the next digit in our result. 
Result so far: 139949.0
Subtracting 4284 from 4401 leaves us with 117.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1170, and continue the process.

Let's proceed to step 9:
If we divide 1170 by 476, we get 2 and a remainder of 218.
Put 2 as the next digit of the answer. 
Result so far: 139949.2
If we subtract 952 from 1170, we get 218.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2180, and continue the process.

Moving on to step 10:
If we divide 2180 by 476, we get 4 and a remainder of 276.
Put 4 as the next digit of the answer. 
Result so far: 139949.24
Deduct 1904 from 2180 and we're left with 276.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2760, and continue the process.

On to step 11:
476 can be fit into 2760 5 times, resulting in a remainder of 380.
The next digit of our result is 5. 
Result so far: 139949.245
If we take 2380 away from 2760, we end up with 380.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3800, and continue the process.

Advancing to step 12:
3800 divided by 476 is 7 with a remainder of 468.
Record the quotient 7 as the next digit in the result. 
Result so far: 139949.2457
Deduct 3332 from 3800 and we're left with 468.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4680, and continue the process.

Moving on to step 13:
476 can be fit into 4680 9 times, resulting in a remainder of 396.
The next digit of our result is 9. 
Result so far: 139949.24579
Deduct 4284 from 4680 and we're left with 396.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3960, and continue the process.

Advancing to step 14:
When dividing 3960 by 476, we get 8 with a remainder of 152.
Record the quotient 8 as the next digit in the result. 
Result so far: 139949.245798
Subtract 3808 from 3960 to 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.

Moving on to step 15:
1520 divided by 476 is 3 with a remainder of 92.
The next digit of our result is 3. 
Result so far: 139949.2457983
Subtracting 1428 from 1520 leaves us with 92.
Since there are no more digits in the dividend, we add a zero to the remainder making it 920, and continue the process.

Advancing to step 16:
920 divided by 476 is 1 with a remainder of 444.
The number 1 becomes the next digit in our result. 
Result so far: 139949.24579831
Subtracting 476 from 920 leaves us with 444.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4440, and continue the process.

In conclusion, the division gives 139949.24579831 with a balance of 4.44e-07.