We divide 506190 by 45
The aim is to understand the frequency of 45 in 506190.

Step 1:
If we divide 5 by 45, we get 0 and a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 5 and we're left with 5.
Include the next digit (0) from the dividend after 5, then repeat: 50 / 45

Step 2:
When dividing 50 by 45, we get 1 with a remainder of 5.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
The remainder is 5 after subtracting 45 from 50.
Include the next digit (6) from the dividend after 5, then repeat: 56 / 45

Step 3:
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: 11.0
The remainder is 11 after subtracting 45 from 56.
Include the next digit (1) from the dividend after 11, then repeat: 111 / 45

Advancing to step 4:
45 can be fit into 111 2 times, resulting in a remainder of 21.
The next digit of our result is 2. 
Result so far: 112.0
Subtract 90 from 111 to get 21.
Fetch the next digit (9) from the dividend, attach it to 21 and continue: 219 / 45

Step 5:
45 can be fit into 219 4 times, resulting in a remainder of 39.
Use 4 as the next digit of our solution. 
Result so far: 1124.0
Deduct 180 from 219 and we're left with 39.
Fetch the next digit (0) from the dividend, attach it to 39 and continue: 390 / 45

Let's proceed to step 6:
The number 45 fits into 390 8 times, leaving a remainder of 30.
Write down 8 as next digit of the result. 
Result so far: 11248.0
Deduct 360 from 390 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.

Going ahead to step 7:
When dividing 300 by 45, we get 6 with a remainder of 30.
Use 6 as the next digit of our solution. 
Result so far: 11248.6
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.

On to step 8:
The number 45 fits into 300 6 times, leaving a remainder of 30.
Write down 6 as next digit of the result. 
Result so far: 11248.66
Deduct 270 from 300 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.

Our division results in 11248.66 with a remaining 0.03.