We're dividing 44646371 by 815 
We want to divide 44646371 by 815.

Going ahead to step 1:
815 goes into 4 0 times with a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 4 to get 4.
Take the next digit (4) from the dividend and append it to 4, then repeat: 44 / 815

Going ahead to step 2:
If we divide 44 by 815, we get 0 and a remainder of 44.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 44 leaves us with 44.
Append the next digit (6) from the dividend to 44 and continue with: 446 / 815

Step 3:
815 goes into 446 0 times with a remainder of 446.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 446 leaves us with 446.
Bring next digit (4) of the dividend behind the 446 and repeat the process: 4464 / 815

Advancing to step 4:
815 can be fit into 4464 5 times, resulting in a remainder of 389.
Put 5 as the next digit of the answer. 
Result so far: 5.0
Deduct 4075 from 4464 and we're left with 389.
Grab the next digit (6) from the dividend, add it to 389, then carry on: 3896 / 815

Advancing to step 5:
When dividing 3896 by 815, we get 4 with a remainder of 636.
Record the quotient 4 as the next digit in the result. 
Result so far: 54.0
Subtracting 3260 from 3896 leaves us with 636.
Fetch the next digit (3) from the dividend, attach it to 636 and continue: 6363 / 815

Going ahead to step 6:
815 can be fit into 6363 7 times, resulting in a remainder of 658.
Use 7 as the next digit of our solution. 
Result so far: 547.0
If we take 5705 away from 6363, we end up with 658.
Include the next digit (7) from the dividend after 658, then repeat: 6587 / 815

Going ahead to step 7:
If we divide 6587 by 815, we get 8 and a remainder of 67.
The number 8 becomes the next digit in our result. 
Result so far: 5478.0
If we subtract 6520 from 6587, we get 67.
Grab the next digit (1) from the dividend, add it to 67, then carry on: 671 / 815

Moving on to step 8:
671 divided by 815 is 0 with a remainder of 671.
Record the quotient 0 as the next digit in the result. 
Result so far: 54780.0
Deduct 0 from 671 and we're left with 671.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6710, and continue the process.

Going ahead to step 9:
815 goes into 6710 8 times with a remainder of 190.
The next digit of our result is 8. 
Result so far: 54780.8
Deduct 6520 from 6710 and we're left with 190.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1900, and continue the process.

Let's proceed to step 10:
1900 divided by 815 is 2 with a remainder of 270.
Write down 2 as next digit of the result. 
Result so far: 54780.82
Subtract 1630 from 1900 to get 270.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2700, and continue the process.

Step 11:
If we divide 2700 by 815, we get 3 and a remainder of 255.
Put 3 as the next digit of the answer. 
Result so far: 54780.823
If we take 2445 away from 2700, we end up with 255.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2550, and continue the process.

Advancing to step 12:
2550 divided by 815 is 3 with a remainder of 105.
Record the quotient 3 as the next digit in the result. 
Result so far: 54780.8233
If we take 2445 away from 2550, we end up with 105.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1050, and continue the process.

The final outcome is 54780.8233, with a leftover of 0.00105.