139323 divided by 45 
The aim is to understand the frequency of 45 in 139323.

Step 1:
If we divide 1 by 45, we get 0 and a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Fetch the next digit (3) from the dividend, attach it to 1 and continue: 13 / 45

On to step 2:
13 divided by 45 is 0 with a remainder of 13.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 13 and we're left with 13.
Take the next digit (9) from the dividend and append it to 13, then repeat: 139 / 45

Advancing to step 3:
If we divide 139 by 45, we get 3 and a remainder of 4.
Write down 3 as next digit of the result. 
Result so far: 3.0
Subtract 135 from 139 to get 4.
Bring next digit (3) of the dividend behind the 4 and repeat the process: 43 / 45

Step 4:
43 divided by 45 is 0 with a remainder of 43.
Use 0 as the next digit of our solution. 
Result so far: 30.0
The remainder is 43 after subtracting 0 from 43.
Include the next digit (2) from the dividend after 43, then repeat: 432 / 45

On to step 5:
If we divide 432 by 45, we get 9 and a remainder of 27.
Put 9 as the next digit of the answer. 
Result so far: 309.0
The remainder is 27 after subtracting 405 from 432.
Take the next digit (3) from the dividend and append it to 27, then repeat: 273 / 45

Let's proceed to step 6:
If we divide 273 by 45, we get 6 and a remainder of 3.
Put 6 as the next digit of the answer. 
Result so far: 3096.0
If we subtract 270 from 273, we get 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Advancing to step 7:
45 can be fit into 30 0 times, resulting in a remainder of 30.
Write down 0 as next digit of the result. 
Result so far: 3096.0
Subtracting 0 from 30 leaves us with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Let's proceed to step 8:
300 divided by 45 is 6 with a remainder of 30.
The next digit of our result is 6. 
Result so far: 3096.06
Subtracting 270 from 300 leaves us with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Step 9:
45 can be fit into 300 6 times, resulting in a remainder of 30.
The number 6 becomes the next digit in our result. 
Result so far: 3096.066
Subtracting 270 from 300 leaves us with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

The final outcome is 3096.066, with a leftover of 0.003.