12273949 ÷ 45 
The aim is to understand the frequency of 45 in 12273949.

Advancing to step 1:
45 can be fit into 1 0 times, resulting in a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Append the next digit (2) from the dividend to 1 and continue with: 12 / 45

Advancing to step 2:
45 can be fit into 12 0 times, resulting in a remainder of 12.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 12 leaves us with 12.
Fetch the next digit (2) from the dividend, attach it to 12 and continue: 122 / 45

On to step 3:
122 divided by 45 is 2 with a remainder of 32.
Use 2 as the next digit of our solution. 
Result so far: 2.0
If we subtract 90 from 122, we get 32.
Take the next digit (7) from the dividend and append it to 32, then repeat: 327 / 45

On to step 4:
45 can be fit into 327 7 times, resulting in a remainder of 12.
Record the quotient 7 as the next digit in the result. 
Result so far: 27.0
Deduct 315 from 327 and we're left with 12.
Bring next digit (3) of the dividend behind the 12 and repeat the process: 123 / 45

On to step 5:
45 can be fit into 123 2 times, resulting in a remainder of 33.
The next digit of our result is 2. 
Result so far: 272.0
If we subtract 90 from 123, we get 33.
Include the next digit (9) from the dividend after 33, then repeat: 339 / 45

Advancing to step 6:
The number 45 fits into 339 7 times, leaving a remainder of 24.
Put 7 as the next digit of the answer. 
Result so far: 2727.0
If we take 315 away from 339, we end up with 24.
Include the next digit (4) from the dividend after 24, then repeat: 244 / 45

Going ahead to step 7:
45 can be fit into 244 5 times, resulting in a remainder of 19.
The number 5 becomes the next digit in our result. 
Result so far: 27275.0
If we take 225 away from 244, we end up with 19.
Fetch the next digit (9) from the dividend, attach it to 19 and continue: 199 / 45

Advancing to step 8:
199 divided by 45 is 4 with a remainder of 19.
The number 4 becomes the next digit in our result. 
Result so far: 272754.0
The remainder is 19 after subtracting 180 from 199.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Let's proceed to step 9:
190 divided by 45 is 4 with a remainder of 10.
Use 4 as the next digit of our solution. 
Result so far: 272754.4
If we take 180 away from 190, we end up with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Advancing to step 10:
If we divide 100 by 45, we get 2 and a remainder of 10.
Put 2 as the next digit of the answer. 
Result so far: 272754.42
Subtract 90 from 100 to get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Step 11:
The number 45 fits into 100 2 times, leaving a remainder of 10.
Put 2 as the next digit of the answer. 
Result so far: 272754.422
Deduct 90 from 100 and we're left with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

The quotient of the division is 272754.422, and the remainder is 0.001.