54245 ÷ 1 
We're looking to find how many times 1 goes into 54245.

Moving on to step 1:
If we divide 5 by 1, we get 5 and a remainder of 0.
The next digit of our result is 5. 
Result so far: 5.0
Subtract 5 from 5 to get 0.
Fetch the next digit (4) from the dividend, attach it to 0 and continue: 4 / 1

Advancing to step 2:
The number 1 fits into 4 4 times, leaving a remainder of 0.
Record the quotient 4 as the next digit in the result. 
Result so far: 54.0
The remainder is 0 after subtracting 4 from 4.
Grab the next digit (2) from the dividend, add it to 0, then carry on: 2 / 1

Going ahead to step 3:
The number 1 fits into 2 2 times, leaving a remainder of 0.
The number 2 becomes the next digit in our result. 
Result so far: 542.0
Subtracting 2 from 2 leaves us with 0.
Include the next digit (4) from the dividend after 0, then repeat: 4 / 1

Step 4:
If we divide 4 by 1, we get 4 and a remainder of 0.
The next digit of our result is 4. 
Result so far: 5424.0
Subtracting 4 from 4 leaves us with 0.
Bring next digit (5) of the dividend behind the 0 and repeat the process: 5 / 1

Going ahead to step 5:
1 goes into 5 5 times with a remainder of 0.
Write down 5 as next digit of the result. 
Result so far: 54245.0
Subtract 5 from 5 to 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.

Step 6:
1 can be fit into 0 0 times, resulting in a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 54245.0
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.

On to step 7:
If we divide 0 by 1, we get 0 and a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 54245.0
Subtracting 0 from 0 leaves us 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 54245.0, with a leftover of 0.0.