539285 ÷ 45 
The aim is to understand the frequency of 45 in 539285.

Moving on to step 1:
45 can be fit into 5 0 times, resulting in a remainder of 5.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 5 and we're left with 5.
Append the next digit (3) from the dividend to 5 and continue with: 53 / 45

Advancing to step 2:
If we divide 53 by 45, we get 1 and a remainder of 8.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we take 45 away from 53, we end up with 8.
Append the next digit (9) from the dividend to 8 and continue with: 89 / 45

On to step 3:
If we divide 89 by 45, we get 1 and a remainder of 44.
Record the quotient 1 as the next digit in the result. 
Result so far: 11.0
Subtract 45 from 89 to get 44.
Take the next digit (2) from the dividend and append it to 44, then repeat: 442 / 45

Let's proceed to step 4:
If we divide 442 by 45, we get 9 and a remainder of 37.
Use 9 as the next digit of our solution. 
Result so far: 119.0
If we take 405 away from 442, we end up with 37.
Grab the next digit (8) from the dividend, add it to 37, then carry on: 378 / 45

Let's proceed to step 5:
If we divide 378 by 45, we get 8 and a remainder of 18.
The next digit of our result is 8. 
Result so far: 1198.0
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

Step 6:
45 goes into 185 4 times with a remainder of 5.
Put 4 as the next digit of the answer. 
Result so far: 11984.0
Deduct 180 from 185 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.

On to step 7:
The number 45 fits into 50 1 times, leaving a remainder of 5.
The next digit of our result is 1. 
Result so far: 11984.1
Subtracting 45 from 50 leaves us 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.

Moving on to step 8:
45 can be fit into 50 1 times, resulting in a remainder of 5.
Record the quotient 1 as the next digit in the result. 
Result so far: 11984.11
The remainder is 5 after subtracting 45 from 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

The quotient of the division is 11984.11, and the remainder is 0.005.