885921 ÷ 45 
The aim is to understand the frequency of 45 in 885921.

Going ahead to step 1:
8 divided by 45 is 0 with a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Fetch the next digit (8) from the dividend, attach it to 8 and continue: 88 / 45

Going ahead to step 2:
The number 45 fits into 88 1 times, leaving a remainder of 43.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtract 45 from 88 to get 43.
Bring next digit (5) of the dividend behind the 43 and repeat the process: 435 / 45

Going ahead to step 3:
When dividing 435 by 45, we get 9 with a remainder of 30.
Use 9 as the next digit of our solution. 
Result so far: 19.0
If we take 405 away from 435, we end up with 30.
Fetch the next digit (9) from the dividend, attach it to 30 and continue: 309 / 45

On to step 4:
The number 45 fits into 309 6 times, leaving a remainder of 39.
The number 6 becomes the next digit in our result. 
Result so far: 196.0
Subtract 270 from 309 to get 39.
Take the next digit (2) from the dividend and append it to 39, then repeat: 392 / 45

On to step 5:
392 divided by 45 is 8 with a remainder of 32.
The next digit of our result is 8. 
Result so far: 1968.0
Deduct 360 from 392 and we're left with 32.
Include the next digit (1) from the dividend after 32, then repeat: 321 / 45

Going ahead to step 6:
If we divide 321 by 45, we get 7 and a remainder of 6.
The next digit of our result is 7. 
Result so far: 19687.0
Subtract 315 from 321 to get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

On to step 7:
45 can be fit into 60 1 times, resulting in a remainder of 15.
The number 1 becomes the next digit in our result. 
Result so far: 19687.1
If we subtract 45 from 60, we get 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Moving on to step 8:
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: 19687.13
The remainder is 15 after subtracting 135 from 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Let's proceed to step 9:
45 goes into 150 3 times with a remainder of 15.
The next digit of our result is 3. 
Result so far: 19687.133
If we take 135 away from 150, we end up 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 19687.133 with a remaining 0.0015.