We divide 80399875 by 366
The aim is to understand the frequency of 366 in 80399875.

On to step 1:
If we divide 8 by 366, we get 0 and a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Bring next digit (0) of the dividend behind the 8 and repeat the process: 80 / 366

On to step 2:
The number 366 fits into 80 0 times, leaving a remainder of 80.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 80 to get 80.
Take the next digit (3) from the dividend and append it to 80, then repeat: 803 / 366

Going ahead to step 3:
The number 366 fits into 803 2 times, leaving a remainder of 71.
The next digit of our result is 2. 
Result so far: 2.0
Deduct 732 from 803 and we're left with 71.
Grab the next digit (9) from the dividend, add it to 71, then carry on: 719 / 366

Going ahead to step 4:
If we divide 719 by 366, we get 1 and a remainder of 353.
The number 1 becomes the next digit in our result. 
Result so far: 21.0
If we take 366 away from 719, we end up with 353.
Bring next digit (9) of the dividend behind the 353 and repeat the process: 3539 / 366

Moving on to step 5:
If we divide 3539 by 366, we get 9 and a remainder of 245.
Write down 9 as next digit of the result. 
Result so far: 219.0
If we take 3294 away from 3539, we end up with 245.
Append the next digit (8) from the dividend to 245 and continue with: 2458 / 366

Advancing to step 6:
If we divide 2458 by 366, we get 6 and a remainder of 262.
Use 6 as the next digit of our solution. 
Result so far: 2196.0
If we subtract 2196 from 2458, we get 262.
Grab the next digit (7) from the dividend, add it to 262, then carry on: 2627 / 366

On to step 7:
When dividing 2627 by 366, we get 7 with a remainder of 65.
The number 7 becomes the next digit in our result. 
Result so far: 21967.0
Deduct 2562 from 2627 and we're left with 65.
Bring next digit (5) of the dividend behind the 65 and repeat the process: 655 / 366

Step 8:
366 can be fit into 655 1 times, resulting in a remainder of 289.
Put 1 as the next digit of the answer. 
Result so far: 219671.0
Deduct 366 from 655 and we're left with 289.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2890, and continue the process.

Going ahead to step 9:
If we divide 2890 by 366, we get 7 and a remainder of 328.
Write down 7 as next digit of the result. 
Result so far: 219671.7
If we subtract 2562 from 2890, we get 328.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3280, and continue the process.

On to step 10:
3280 divided by 366 is 8 with a remainder of 352.
Record the quotient 8 as the next digit in the result. 
Result so far: 219671.78
Subtracting 2928 from 3280 leaves us with 352.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3520, and continue the process.

On to step 11:
When dividing 3520 by 366, we get 9 with a remainder of 226.
Record the quotient 9 as the next digit in the result. 
Result so far: 219671.789
If we subtract 3294 from 3520, we get 226.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2260, and continue the process.

Moving on to step 12:
2260 divided by 366 is 6 with a remainder of 64.
Use 6 as the next digit of our solution. 
Result so far: 219671.7896
Subtracting 2196 from 2260 leaves us with 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

On to step 13:
366 can be fit into 640 1 times, resulting in a remainder of 274.
Write down 1 as next digit of the result. 
Result so far: 219671.78961
The remainder is 274 after subtracting 366 from 640.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2740, and continue the process.

Advancing to step 14:
366 goes into 2740 7 times with a remainder of 178.
Record the quotient 7 as the next digit in the result. 
Result so far: 219671.789617
If we subtract 2562 from 2740, we get 178.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1780, and continue the process.

Let's proceed to step 15:
366 goes into 1780 4 times with a remainder of 316.
The next digit of our result is 4. 
Result so far: 219671.7896174
Subtract 1464 from 1780 to get 316.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3160, and continue the process.

Advancing to step 16:
3160 divided by 366 is 8 with a remainder of 232.
Use 8 as the next digit of our solution. 
Result so far: 219671.78961748
If we subtract 2928 from 3160, we get 232.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2320, and continue the process.

In conclusion, the division gives 219671.78961748 with a balance of 2.32e-07.