We're dividing 545448 by 15 
We want to figure out the number of times 545448 can be divided by 15.

Moving on to step 1:
When dividing 5 by 15, we get 0 with a remainder of 5.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 5, we get 5.
Grab the next digit (4) from the dividend, add it to 5, then carry on: 54 / 15

Let's proceed to step 2:
When dividing 54 by 15, we get 3 with a remainder of 9.
Put 3 as the next digit of the answer. 
Result so far: 3.0
Subtract 45 from 54 to get 9.
Fetch the next digit (5) from the dividend, attach it to 9 and continue: 95 / 15

Let's proceed to step 3:
95 divided by 15 is 6 with a remainder of 5.
Record the quotient 6 as the next digit in the result. 
Result so far: 36.0
If we subtract 90 from 95, we get 5.
Bring next digit (4) of the dividend behind the 5 and repeat the process: 54 / 15

Advancing to step 4:
54 divided by 15 is 3 with a remainder of 9.
The number 3 becomes the next digit in our result. 
Result so far: 363.0
Deduct 45 from 54 and we're left with 9.
Grab the next digit (4) from the dividend, add it to 9, then carry on: 94 / 15

Going ahead to step 5:
When dividing 94 by 15, we get 6 with a remainder of 4.
Use 6 as the next digit of our solution. 
Result so far: 3636.0
Subtract 90 from 94 to get 4.
Take the next digit (8) from the dividend and append it to 4, then repeat: 48 / 15

Step 6:
15 can be fit into 48 3 times, resulting in a remainder of 3.
Record the quotient 3 as the next digit in the result. 
Result so far: 36363.0
Deduct 45 from 48 and we're left with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Step 7:
30 divided by 15 is 2 with a remainder of 0.
The next digit of our result is 2. 
Result so far: 36363.2
If we subtract 30 from 30, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Moving on to step 8:
15 can be fit into 0 0 times, resulting in a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 36363.2
Deduct 0 from 0 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Let's proceed to step 9:
0 divided by 15 is 0 with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 36363.2
If we take 0 away from 0, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The final outcome is 36363.2, with a leftover of 0.0.