805605 divided by 45 
The aim is to understand the frequency of 45 in 805605.

Let's proceed to step 1:
When dividing 8 by 45, we get 0 with a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Grab the next digit (0) from the dividend, add it to 8, then carry on: 80 / 45

Moving on to step 2:
The number 45 fits into 80 1 times, leaving a remainder of 35.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Deduct 45 from 80 and we're left with 35.
Take the next digit (5) from the dividend and append it to 35, then repeat: 355 / 45

Going ahead to step 3:
45 can be fit into 355 7 times, resulting in a remainder of 40.
Write down 7 as next digit of the result. 
Result so far: 17.0
Subtracting 315 from 355 leaves us with 40.
Append the next digit (6) from the dividend to 40 and continue with: 406 / 45

Step 4:
If we divide 406 by 45, we get 9 and a remainder of 1.
The next digit of our result is 9. 
Result so far: 179.0
Deduct 405 from 406 and we're left with 1.
Append the next digit (0) from the dividend to 1 and continue with: 10 / 45

On to step 5:
45 can be fit into 10 0 times, resulting in a remainder of 10.
Write down 0 as next digit of the result. 
Result so far: 1790.0
If we take 0 away from 10, we end up with 10.
Fetch the next digit (5) from the dividend, attach it to 10 and continue: 105 / 45

Step 6:
45 goes into 105 2 times with a remainder of 15.
The next digit of our result is 2. 
Result so far: 17902.0
Subtract 90 from 105 to 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.

Going ahead to step 7:
When dividing 150 by 45, we get 3 with a remainder of 15.
Use 3 as the next digit of our solution. 
Result so far: 17902.3
Subtracting 135 from 150 leaves us 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.

Moving on to step 8:
The number 45 fits into 150 3 times, leaving a remainder of 15.
Put 3 as the next digit of the answer. 
Result so far: 17902.33
If we subtract 135 from 150, 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.

The quotient of the division is 17902.33, and the remainder is 0.015.