Let's divide 623103 by 45
The aim is to understand the frequency of 45 in 623103.

Moving on to step 1:
The number 45 fits into 6 0 times, leaving a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Bring next digit (2) of the dividend behind the 6 and repeat the process: 62 / 45

Step 2:
62 divided by 45 is 1 with a remainder of 17.
The next digit of our result is 1. 
Result so far: 1.0
If we subtract 45 from 62, we get 17.
Include the next digit (3) from the dividend after 17, then repeat: 173 / 45

Advancing to step 3:
When dividing 173 by 45, we get 3 with a remainder of 38.
Use 3 as the next digit of our solution. 
Result so far: 13.0
Subtracting 135 from 173 leaves us with 38.
Grab the next digit (1) from the dividend, add it to 38, then carry on: 381 / 45

On to step 4:
When dividing 381 by 45, we get 8 with a remainder of 21.
The number 8 becomes the next digit in our result. 
Result so far: 138.0
Subtract 360 from 381 to get 21.
Grab the next digit (0) from the dividend, add it to 21, then carry on: 210 / 45

Step 5:
45 goes into 210 4 times with a remainder of 30.
Put 4 as the next digit of the answer. 
Result so far: 1384.0
Deduct 180 from 210 and we're left with 30.
Append the next digit (3) from the dividend to 30 and continue with: 303 / 45

Going ahead to step 6:
45 can be fit into 303 6 times, resulting in a remainder of 33.
Put 6 as the next digit of the answer. 
Result so far: 13846.0
If we take 270 away from 303, we end up with 33.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

Let's proceed to step 7:
45 can be fit into 330 7 times, resulting in a remainder of 15.
The number 7 becomes the next digit in our result. 
Result so far: 13846.7
Deduct 315 from 330 and we're left with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

On to step 8:
45 can be fit into 150 3 times, resulting in a remainder of 15.
The next digit of our result is 3. 
Result so far: 13846.73
Deduct 135 from 150 and we're left with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

On to step 9:
When dividing 150 by 45, we get 3 with a remainder of 15.
The number 3 becomes the next digit in our result. 
Result so far: 13846.733
Deduct 135 from 150 and we're left with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Our division results in 13846.733 with a remaining 0.0015.