915309 ÷ 48 
We're looking to find how many times 48 goes into 915309.

Moving on to step 1:
48 goes into 9 0 times with a remainder of 9.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 9 and we're left with 9.
Grab the next digit (1) from the dividend, add it to 9, then carry on: 91 / 48

Going ahead to step 2:
The number 48 fits into 91 1 times, leaving a remainder of 43.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Deduct 48 from 91 and we're left with 43.
Take the next digit (5) from the dividend and append it to 43, then repeat: 435 / 48

On to step 3:
When dividing 435 by 48, we get 9 with a remainder of 3.
Put 9 as the next digit of the answer. 
Result so far: 19.0
If we take 432 away from 435, we end up with 3.
Include the next digit (3) from the dividend after 3, then repeat: 33 / 48

Let's proceed to step 4:
If we divide 33 by 48, we get 0 and a remainder of 33.
The next digit of our result is 0. 
Result so far: 190.0
Deduct 0 from 33 and we're left with 33.
Bring next digit (0) of the dividend behind the 33 and repeat the process: 330 / 48

Let's proceed to step 5:
The number 48 fits into 330 6 times, leaving a remainder of 42.
The next digit of our result is 6. 
Result so far: 1906.0
If we subtract 288 from 330, we get 42.
Fetch the next digit (9) from the dividend, attach it to 42 and continue: 429 / 48

Moving on to step 6:
The number 48 fits into 429 8 times, leaving a remainder of 45.
The next digit of our result is 8. 
Result so far: 19068.0
Deduct 384 from 429 and we're left with 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

Going ahead to step 7:
48 can be fit into 450 9 times, resulting in a remainder of 18.
Put 9 as the next digit of the answer. 
Result so far: 19068.9
Deduct 432 from 450 and we're left with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Moving on to step 8:
When dividing 180 by 48, we get 3 with a remainder of 36.
The number 3 becomes the next digit in our result. 
Result so far: 19068.93
Subtract 144 from 180 to get 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Moving on to step 9:
The number 48 fits into 360 7 times, leaving a remainder of 24.
Record the quotient 7 as the next digit in the result. 
Result so far: 19068.937
If we subtract 336 from 360, we get 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Moving on to step 10:
240 divided by 48 is 5 with a remainder of 0.
Write down 5 as next digit of the result. 
Result so far: 19068.9375
If we take 240 away from 240, 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.

Going ahead to step 11:
If we divide 0 by 48, we get 0 and a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 19068.9375
Subtract 0 from 0 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.

Advancing to step 12:
48 goes into 0 0 times with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 19068.9375
Subtract 0 from 0 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.

The final outcome is 19068.9375, with a leftover of 0.0.