673005 divided by 45 
The aim is to understand the frequency of 45 in 673005.

Advancing to step 1:
If we divide 6 by 45, we get 0 and a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Include the next digit (7) from the dividend after 6, then repeat: 67 / 45

Advancing to step 2:
45 goes into 67 1 times with a remainder of 22.
Put 1 as the next digit of the answer. 
Result so far: 1.0
The remainder is 22 after subtracting 45 from 67.
Fetch the next digit (3) from the dividend, attach it to 22 and continue: 223 / 45

Advancing to step 3:
223 divided by 45 is 4 with a remainder of 43.
Write down 4 as next digit of the result. 
Result so far: 14.0
The remainder is 43 after subtracting 180 from 223.
Append the next digit (0) from the dividend to 43 and continue with: 430 / 45

Moving on to step 4:
45 can be fit into 430 9 times, resulting in a remainder of 25.
Use 9 as the next digit of our solution. 
Result so far: 149.0
Subtracting 405 from 430 leaves us with 25.
Grab the next digit (0) from the dividend, add it to 25, then carry on: 250 / 45

Going ahead to step 5:
If we divide 250 by 45, we get 5 and a remainder of 25.
Use 5 as the next digit of our solution. 
Result so far: 1495.0
Deduct 225 from 250 and we're left with 25.
Fetch the next digit (5) from the dividend, attach it to 25 and continue: 255 / 45

Going ahead to step 6:
The number 45 fits into 255 5 times, leaving a remainder of 30.
Record the quotient 5 as the next digit in the result. 
Result so far: 14955.0
The remainder is 30 after subtracting 225 from 255.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Advancing to step 7:
The number 45 fits into 300 6 times, leaving a remainder of 30.
Put 6 as the next digit of the answer. 
Result so far: 14955.6
The remainder is 30 after subtracting 270 from 300.
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:
The number 45 fits into 300 6 times, leaving a remainder of 30.
Put 6 as the next digit of the answer. 
Result so far: 14955.66
The remainder is 30 after subtracting 270 from 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

The quotient of the division is 14955.66, and the remainder is 0.03.