48609 divided by 40 
We want to divide 48609 by 40.

On to step 1:
40 goes into 4 0 times with a remainder of 4.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 4 to get 4.
Fetch the next digit (8) from the dividend, attach it to 4 and continue: 48 / 40

Step 2:
40 can be fit into 48 1 times, resulting in a remainder of 8.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we take 40 away from 48, we end up with 8.
Fetch the next digit (6) from the dividend, attach it to 8 and continue: 86 / 40

On to step 3:
40 goes into 86 2 times with a remainder of 6.
The number 2 becomes the next digit in our result. 
Result so far: 12.0
If we subtract 80 from 86, we get 6.
Append the next digit (0) from the dividend to 6 and continue with: 60 / 40

Moving on to step 4:
If we divide 60 by 40, we get 1 and a remainder of 20.
Write down 1 as next digit of the result. 
Result so far: 121.0
Subtracting 40 from 60 leaves us with 20.
Take the next digit (9) from the dividend and append it to 20, then repeat: 209 / 40

Let's proceed to step 5:
209 divided by 40 is 5 with a remainder of 9.
Put 5 as the next digit of the answer. 
Result so far: 1215.0
If we subtract 200 from 209, we get 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Advancing to step 6:
40 can be fit into 90 2 times, resulting in a remainder of 10.
Use 2 as the next digit of our solution. 
Result so far: 1215.2
Subtracting 80 from 90 leaves us with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Moving on to step 7:
40 goes into 100 2 times with a remainder of 20.
Use 2 as the next digit of our solution. 
Result so far: 1215.22
Deduct 80 from 100 and we're left with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Our division results in 1215.22 with a remaining 0.02.