We look at the division of 20399171 by 48 
We want to divide 20399171 by 48.

Moving on to step 1:
If we divide 2 by 48, we get 0 and a remainder of 2.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 2, we get 2.
Include the next digit (0) from the dividend after 2, then repeat: 20 / 48

Step 2:
20 divided by 48 is 0 with a remainder of 20.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 20 leaves us with 20.
Fetch the next digit (3) from the dividend, attach it to 20 and continue: 203 / 48

Let's proceed to step 3:
The number 48 fits into 203 4 times, leaving a remainder of 11.
Put 4 as the next digit of the answer. 
Result so far: 4.0
The remainder is 11 after subtracting 192 from 203.
Append the next digit (9) from the dividend to 11 and continue with: 119 / 48

On to step 4:
If we divide 119 by 48, we get 2 and a remainder of 23.
Use 2 as the next digit of our solution. 
Result so far: 42.0
Subtracting 96 from 119 leaves us with 23.
Grab the next digit (9) from the dividend, add it to 23, then carry on: 239 / 48

Going ahead to step 5:
239 divided by 48 is 4 with a remainder of 47.
Write down 4 as next digit of the result. 
Result so far: 424.0
The remainder is 47 after subtracting 192 from 239.
Include the next digit (1) from the dividend after 47, then repeat: 471 / 48

On to step 6:
471 divided by 48 is 9 with a remainder of 39.
Put 9 as the next digit of the answer. 
Result so far: 4249.0
The remainder is 39 after subtracting 432 from 471.
Grab the next digit (7) from the dividend, add it to 39, then carry on: 397 / 48

Let's proceed to step 7:
397 divided by 48 is 8 with a remainder of 13.
Record the quotient 8 as the next digit in the result. 
Result so far: 42498.0
If we take 384 away from 397, we end up with 13.
Fetch the next digit (1) from the dividend, attach it to 13 and continue: 131 / 48

Step 8:
131 divided by 48 is 2 with a remainder of 35.
The next digit of our result is 2. 
Result so far: 424982.0
If we take 96 away from 131, we end up with 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Moving on to step 9:
When dividing 350 by 48, we get 7 with a remainder of 14.
Record the quotient 7 as the next digit in the result. 
Result so far: 424982.7
Subtract 336 from 350 to get 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Step 10:
140 divided by 48 is 2 with a remainder of 44.
The number 2 becomes the next digit in our result. 
Result so far: 424982.72
The remainder is 44 after subtracting 96 from 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Going ahead to step 11:
48 can be fit into 440 9 times, resulting in a remainder of 8.
The next digit of our result is 9. 
Result so far: 424982.729
If we subtract 432 from 440, we get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Advancing to step 12:
48 goes into 80 1 times with a remainder of 32.
The number 1 becomes the next digit in our result. 
Result so far: 424982.7291
The remainder is 32 after subtracting 48 from 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Let's proceed to step 13:
The number 48 fits into 320 6 times, leaving a remainder of 32.
Record the quotient 6 as the next digit in the result. 
Result so far: 424982.72916
If we take 288 away from 320, we end up with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Let's proceed to step 14:
When dividing 320 by 48, we get 6 with a remainder of 32.
Record the quotient 6 as the next digit in the result. 
Result so far: 424982.729166
Subtract 288 from 320 to get 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

The final outcome is 424982.729166, with a leftover of 3.2e-06.