We divide 21785 by 45
The aim is to understand the frequency of 45 in 21785.

Going ahead to step 1:
When dividing 2 by 45, we get 0 with a remainder of 2.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 2 after subtracting 0 from 2.
Fetch the next digit (1) from the dividend, attach it to 2 and continue: 21 / 45

Moving on to step 2:
45 can be fit into 21 0 times, resulting in a remainder of 21.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 21, we get 21.
Fetch the next digit (7) from the dividend, attach it to 21 and continue: 217 / 45

Let's proceed to step 3:
217 divided by 45 is 4 with a remainder of 37.
The number 4 becomes the next digit in our result. 
Result so far: 4.0
If we subtract 180 from 217, we get 37.
Bring next digit (8) of the dividend behind the 37 and repeat the process: 378 / 45

Let's proceed to step 4:
378 divided by 45 is 8 with a remainder of 18.
The number 8 becomes the next digit in our result. 
Result so far: 48.0
If we take 360 away from 378, we end up with 18.
Grab the next digit (5) from the dividend, add it to 18, then carry on: 185 / 45

On to step 5:
45 goes into 185 4 times with a remainder of 5.
The next digit of our result is 4. 
Result so far: 484.0
If we take 180 away from 185, we end up with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Let's proceed to step 6:
45 goes into 50 1 times with a remainder of 5.
The next digit of our result is 1. 
Result so far: 484.1
If we take 45 away from 50, we end up with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Advancing to step 7:
If we divide 50 by 45, we get 1 and a remainder of 5.
Use 1 as the next digit of our solution. 
Result so far: 484.11
Deduct 45 from 50 and we're left with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

The final outcome is 484.11, with a leftover of 0.005.