Let's divide 543544 by 45
The aim is to understand the frequency of 45 in 543544.

Going ahead to step 1:
The number 45 fits into 5 0 times, leaving a remainder of 5.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 5 after subtracting 0 from 5.
Bring next digit (4) of the dividend behind the 5 and repeat the process: 54 / 45

Let's proceed to step 2:
54 divided by 45 is 1 with a remainder of 9.
The next digit of our result is 1. 
Result so far: 1.0
Deduct 45 from 54 and we're left with 9.
Include the next digit (3) from the dividend after 9, then repeat: 93 / 45

Moving on to step 3:
45 can be fit into 93 2 times, resulting in a remainder of 3.
The next digit of our result is 2. 
Result so far: 12.0
Deduct 90 from 93 and we're left with 3.
Include the next digit (5) from the dividend after 3, then repeat: 35 / 45

Moving on to step 4:
45 can be fit into 35 0 times, resulting in a remainder of 35.
Write down 0 as next digit of the result. 
Result so far: 120.0
If we take 0 away from 35, we end up with 35.
Take the next digit (4) from the dividend and append it to 35, then repeat: 354 / 45

Let's proceed to step 5:
45 goes into 354 7 times with a remainder of 39.
Use 7 as the next digit of our solution. 
Result so far: 1207.0
If we subtract 315 from 354, we get 39.
Fetch the next digit (4) from the dividend, attach it to 39 and continue: 394 / 45

Step 6:
45 goes into 394 8 times with a remainder of 34.
Record the quotient 8 as the next digit in the result. 
Result so far: 12078.0
The remainder is 34 after subtracting 360 from 394.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

On to step 7:
When dividing 340 by 45, we get 7 with a remainder of 25.
Record the quotient 7 as the next digit in the result. 
Result so far: 12078.7
Subtracting 315 from 340 leaves us with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Moving on to step 8:
250 divided by 45 is 5 with a remainder of 25.
Record the quotient 5 as the next digit in the result. 
Result so far: 12078.75
Subtract 225 from 250 to get 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

On to step 9:
If we divide 250 by 45, we get 5 and a remainder of 25.
The number 5 becomes the next digit in our result. 
Result so far: 12078.755
Subtract 225 from 250 to get 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

The quotient of the division is 12078.755, and the remainder is 0.0025.