373867 divided by 45 
The aim is to understand the frequency of 45 in 373867.

On to step 1:
3 divided by 45 is 0 with a remainder of 3.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 3, we end up with 3.
Append the next digit (7) from the dividend to 3 and continue with: 37 / 45

Let's proceed to step 2:
The number 45 fits into 37 0 times, leaving a remainder of 37.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 37, we get 37.
Take the next digit (3) from the dividend and append it to 37, then repeat: 373 / 45

On to step 3:
373 divided by 45 is 8 with a remainder of 13.
Use 8 as the next digit of our solution. 
Result so far: 8.0
If we take 360 away from 373, we end up with 13.
Append the next digit (8) from the dividend to 13 and continue with: 138 / 45

Moving on to step 4:
45 goes into 138 3 times with a remainder of 3.
Use 3 as the next digit of our solution. 
Result so far: 83.0
The remainder is 3 after subtracting 135 from 138.
Include the next digit (6) from the dividend after 3, then repeat: 36 / 45

Let's proceed to step 5:
45 goes into 36 0 times with a remainder of 36.
The number 0 becomes the next digit in our result. 
Result so far: 830.0
If we subtract 0 from 36, we get 36.
Fetch the next digit (7) from the dividend, attach it to 36 and continue: 367 / 45

Going ahead to step 6:
45 goes into 367 8 times with a remainder of 7.
The number 8 becomes the next digit in our result. 
Result so far: 8308.0
If we take 360 away from 367, we end up with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

On to step 7:
70 divided by 45 is 1 with a remainder of 25.
The next digit of our result is 1. 
Result so far: 8308.1
Deduct 45 from 70 and we're left with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Step 8:
When dividing 250 by 45, we get 5 with a remainder of 25.
The next digit of our result is 5. 
Result so far: 8308.15
If we take 225 away from 250, we end up with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Let's proceed to step 9:
45 goes into 250 5 times with a remainder of 25.
Use 5 as the next digit of our solution. 
Result so far: 8308.155
If we subtract 225 from 250, we get 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Our division results in 8308.155 with a remaining 0.0025.