563835 divided by 45 
The aim is to understand the frequency of 45 in 563835.

On to step 1:
The number 45 fits into 5 0 times, leaving a remainder of 5.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 5, we end up with 5.
Take the next digit (6) from the dividend and append it to 5, then repeat: 56 / 45

Going ahead to step 2:
When dividing 56 by 45, we get 1 with a remainder of 11.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
The remainder is 11 after subtracting 45 from 56.
Append the next digit (3) from the dividend to 11 and continue with: 113 / 45

Going ahead to step 3:
113 divided by 45 is 2 with a remainder of 23.
Record the quotient 2 as the next digit in the result. 
Result so far: 12.0
The remainder is 23 after subtracting 90 from 113.
Bring next digit (8) of the dividend behind the 23 and repeat the process: 238 / 45

Going ahead to step 4:
If we divide 238 by 45, we get 5 and a remainder of 13.
Record the quotient 5 as the next digit in the result. 
Result so far: 125.0
If we subtract 225 from 238, we get 13.
Grab the next digit (3) from the dividend, add it to 13, then carry on: 133 / 45

Let's proceed to step 5:
45 goes into 133 2 times with a remainder of 43.
Use 2 as the next digit of our solution. 
Result so far: 1252.0
Subtracting 90 from 133 leaves us with 43.
Fetch the next digit (5) from the dividend, attach it to 43 and continue: 435 / 45

Advancing to step 6:
435 divided by 45 is 9 with a remainder of 30.
The number 9 becomes the next digit in our result. 
Result so far: 12529.0
Deduct 405 from 435 and we're left with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Step 7:
300 divided by 45 is 6 with a remainder of 30.
Put 6 as the next digit of the answer. 
Result so far: 12529.6
Subtract 270 from 300 to get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Moving on to step 8:
The number 45 fits into 300 6 times, leaving a remainder of 30.
Put 6 as the next digit of the answer. 
Result so far: 12529.66
If we take 270 away from 300, we end up with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

The final result is 12529.66 with a remainder of 0.03.