521815 divided by 48 
We want to divide 521815 by 48.

Let's proceed to step 1:
5 divided by 48 is 0 with a remainder of 5.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 5, we end up with 5.
Include the next digit (2) from the dividend after 5, then repeat: 52 / 48

Going ahead to step 2:
52 divided by 48 is 1 with a remainder of 4.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Deduct 48 from 52 and we're left with 4.
Append the next digit (1) from the dividend to 4 and continue with: 41 / 48

Advancing to step 3:
The number 48 fits into 41 0 times, leaving a remainder of 41.
Put 0 as the next digit of the answer. 
Result so far: 10.0
Deduct 0 from 41 and we're left with 41.
Include the next digit (8) from the dividend after 41, then repeat: 418 / 48

Let's proceed to step 4:
48 can be fit into 418 8 times, resulting in a remainder of 34.
Put 8 as the next digit of the answer. 
Result so far: 108.0
The remainder is 34 after subtracting 384 from 418.
Bring next digit (1) of the dividend behind the 34 and repeat the process: 341 / 48

Step 5:
48 goes into 341 7 times with a remainder of 5.
Write down 7 as next digit of the result. 
Result so far: 1087.0
Subtracting 336 from 341 leaves us with 5.
Take the next digit (5) from the dividend and append it to 5, then repeat: 55 / 48

Step 6:
If we divide 55 by 48, we get 1 and a remainder of 7.
Use 1 as the next digit of our solution. 
Result so far: 10871.0
Subtract 48 from 55 to get 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Moving on to step 7:
When dividing 70 by 48, we get 1 with a remainder of 22.
The number 1 becomes the next digit in our result. 
Result so far: 10871.1
The remainder is 22 after subtracting 48 from 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

On to step 8:
The number 48 fits into 220 4 times, leaving a remainder of 28.
Put 4 as the next digit of the answer. 
Result so far: 10871.14
The remainder is 28 after subtracting 192 from 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Let's proceed to step 9:
48 can be fit into 280 5 times, resulting in a remainder of 40.
Record the quotient 5 as the next digit in the result. 
Result so far: 10871.145
The remainder is 40 after subtracting 240 from 280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

On to step 10:
If we divide 400 by 48, we get 8 and a remainder of 16.
The next digit of our result is 8. 
Result so far: 10871.1458
Subtract 384 from 400 to get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Moving on to step 11:
48 goes into 160 3 times with a remainder of 16.
The number 3 becomes the next digit in our result. 
Result so far: 10871.14583
Subtract 144 from 160 to get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Going ahead to step 12:
48 can be fit into 160 3 times, resulting in a remainder of 16.
The next digit of our result is 3. 
Result so far: 10871.145833
Deduct 144 from 160 and we're left with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

The final outcome is 10871.145833, with a leftover of 1.6e-06.