91566599 ÷ 445 
The aim is to understand the frequency of 445 in 91566599.

Let's proceed to step 1:
When dividing 9 by 445, we get 0 with a remainder of 9.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 9, we end up with 9.
Take the next digit (1) from the dividend and append it to 9, then repeat: 91 / 445

Moving on to step 2:
445 can be fit into 91 0 times, resulting in a remainder of 91.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 91 to get 91.
Append the next digit (5) from the dividend to 91 and continue with: 915 / 445

Step 3:
When dividing 915 by 445, we get 2 with a remainder of 25.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
Subtracting 890 from 915 leaves us with 25.
Fetch the next digit (6) from the dividend, attach it to 25 and continue: 256 / 445

Going ahead to step 4:
The number 445 fits into 256 0 times, leaving a remainder of 256.
Record the quotient 0 as the next digit in the result. 
Result so far: 20.0
Subtract 0 from 256 to get 256.
Fetch the next digit (6) from the dividend, attach it to 256 and continue: 2566 / 445

On to step 5:
445 can be fit into 2566 5 times, resulting in a remainder of 341.
Record the quotient 5 as the next digit in the result. 
Result so far: 205.0
If we take 2225 away from 2566, we end up with 341.
Bring next digit (5) of the dividend behind the 341 and repeat the process: 3415 / 445

Step 6:
445 can be fit into 3415 7 times, resulting in a remainder of 300.
The next digit of our result is 7. 
Result so far: 2057.0
Subtract 3115 from 3415 to get 300.
Bring next digit (9) of the dividend behind the 300 and repeat the process: 3009 / 445

Going ahead to step 7:
3009 divided by 445 is 6 with a remainder of 339.
Put 6 as the next digit of the answer. 
Result so far: 20576.0
The remainder is 339 after subtracting 2670 from 3009.
Append the next digit (9) from the dividend to 339 and continue with: 3399 / 445

On to step 8:
445 can be fit into 3399 7 times, resulting in a remainder of 284.
The number 7 becomes the next digit in our result. 
Result so far: 205767.0
If we take 3115 away from 3399, we end up with 284.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2840, and continue the process.

On to step 9:
445 goes into 2840 6 times with a remainder of 170.
Record the quotient 6 as the next digit in the result. 
Result so far: 205767.6
The remainder is 170 after subtracting 2670 from 2840.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1700, and continue the process.

On to step 10:
1700 divided by 445 is 3 with a remainder of 365.
Use 3 as the next digit of our solution. 
Result so far: 205767.63
If we take 1335 away from 1700, we end up with 365.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3650, and continue the process.

On to step 11:
445 goes into 3650 8 times with a remainder of 90.
Put 8 as the next digit of the answer. 
Result so far: 205767.638
Deduct 3560 from 3650 and we're left with 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 900, and continue the process.

Let's proceed to step 12:
445 can be fit into 900 2 times, resulting in a remainder of 10.
Use 2 as the next digit of our solution. 
Result so far: 205767.6382
The remainder is 10 after subtracting 890 from 900.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Going ahead to step 13:
100 divided by 445 is 0 with a remainder of 100.
Write down 0 as next digit of the result. 
Result so far: 205767.6382
The remainder is 100 after subtracting 0 from 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

Moving on to step 14:
445 can be fit into 1000 2 times, resulting in a remainder of 110.
The next digit of our result is 2. 
Result so far: 205767.638202
Subtracting 890 from 1000 leaves us with 110.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1100, and continue the process.

Going ahead to step 15:
If we divide 1100 by 445, we get 2 and a remainder of 210.
Record the quotient 2 as the next digit in the result. 
Result so far: 205767.6382022
If we subtract 890 from 1100, we get 210.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2100, and continue the process.

In conclusion, the division gives 205767.6382022 with a balance of 2.1e-06.