We divide 42744427 by 399
We're looking to find how many times 399 goes into 42744427.

Advancing to step 1:
If we divide 4 by 399, we get 0 and a remainder of 4.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 4 and we're left with 4.
Take the next digit (2) from the dividend and append it to 4, then repeat: 42 / 399

On to step 2:
42 divided by 399 is 0 with a remainder of 42.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 42 to get 42.
Include the next digit (7) from the dividend after 42, then repeat: 427 / 399

Going ahead to step 3:
When dividing 427 by 399, we get 1 with a remainder of 28.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtracting 399 from 427 leaves us with 28.
Include the next digit (4) from the dividend after 28, then repeat: 284 / 399

Step 4:
399 can be fit into 284 0 times, resulting in a remainder of 284.
Write down 0 as next digit of the result. 
Result so far: 10.0
Deduct 0 from 284 and we're left with 284.
Append the next digit (4) from the dividend to 284 and continue with: 2844 / 399

Step 5:
When dividing 2844 by 399, we get 7 with a remainder of 51.
The next digit of our result is 7. 
Result so far: 107.0
Deduct 2793 from 2844 and we're left with 51.
Fetch the next digit (4) from the dividend, attach it to 51 and continue: 514 / 399

On to step 6:
When dividing 514 by 399, we get 1 with a remainder of 115.
Put 1 as the next digit of the answer. 
Result so far: 1071.0
If we subtract 399 from 514, we get 115.
Bring next digit (2) of the dividend behind the 115 and repeat the process: 1152 / 399

Step 7:
When dividing 1152 by 399, we get 2 with a remainder of 354.
The next digit of our result is 2. 
Result so far: 10712.0
Deduct 798 from 1152 and we're left with 354.
Fetch the next digit (7) from the dividend, attach it to 354 and continue: 3547 / 399

Let's proceed to step 8:
When dividing 3547 by 399, we get 8 with a remainder of 355.
Put 8 as the next digit of the answer. 
Result so far: 107128.0
Deduct 3192 from 3547 and we're left with 355.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3550, and continue the process.

Let's proceed to step 9:
399 goes into 3550 8 times with a remainder of 358.
Put 8 as the next digit of the answer. 
Result so far: 107128.8
The remainder is 358 after subtracting 3192 from 3550.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3580, and continue the process.

Moving on to step 10:
If we divide 3580 by 399, we get 8 and a remainder of 388.
Record the quotient 8 as the next digit in the result. 
Result so far: 107128.88
If we take 3192 away from 3580, we end up with 388.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3880, and continue the process.

After the division, we end up with 107128.88 and a remainder of 0.388.