Let's divide 17762840 by 399
We're looking to find how many times 399 goes into 17762840.

On to step 1:
399 goes into 1 0 times with a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 1, we end up with 1.
Take the next digit (7) from the dividend and append it to 1, then repeat: 17 / 399

Moving on to step 2:
399 can be fit into 17 0 times, resulting in a remainder of 17.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 17 leaves us with 17.
Bring next digit (7) of the dividend behind the 17 and repeat the process: 177 / 399

On to step 3:
399 can be fit into 177 0 times, resulting in a remainder of 177.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 177, we end up with 177.
Append the next digit (6) from the dividend to 177 and continue with: 1776 / 399

On to step 4:
The number 399 fits into 1776 4 times, leaving a remainder of 180.
Write down 4 as next digit of the result. 
Result so far: 4.0
The remainder is 180 after subtracting 1596 from 1776.
Take the next digit (2) from the dividend and append it to 180, then repeat: 1802 / 399

Advancing to step 5:
399 goes into 1802 4 times with a remainder of 206.
Use 4 as the next digit of our solution. 
Result so far: 44.0
If we subtract 1596 from 1802, we get 206.
Fetch the next digit (8) from the dividend, attach it to 206 and continue: 2068 / 399

Let's proceed to step 6:
The number 399 fits into 2068 5 times, leaving a remainder of 73.
Write down 5 as next digit of the result. 
Result so far: 445.0
Subtract 1995 from 2068 to get 73.
Bring next digit (4) of the dividend behind the 73 and repeat the process: 734 / 399

Going ahead to step 7:
734 divided by 399 is 1 with a remainder of 335.
The number 1 becomes the next digit in our result. 
Result so far: 4451.0
If we subtract 399 from 734, we get 335.
Include the next digit (0) from the dividend after 335, then repeat: 3350 / 399

Let's proceed to step 8:
399 goes into 3350 8 times with a remainder of 158.
Write down 8 as next digit of the result. 
Result so far: 44518.0
Subtracting 3192 from 3350 leaves us with 158.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1580, and continue the process.

On to step 9:
399 can be fit into 1580 3 times, resulting in a remainder of 383.
The next digit of our result is 3. 
Result so far: 44518.3
Subtract 1197 from 1580 to get 383.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3830, and continue the process.

Step 10:
3830 divided by 399 is 9 with a remainder of 239.
Record the quotient 9 as the next digit in the result. 
Result so far: 44518.39
If we subtract 3591 from 3830, we get 239.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2390, and continue the process.

Step 11:
If we divide 2390 by 399, we get 5 and a remainder of 395.
The next digit of our result is 5. 
Result so far: 44518.395
Deduct 1995 from 2390 and we're left with 395.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3950, and continue the process.

Going ahead to step 12:
When dividing 3950 by 399, we get 9 with a remainder of 359.
Write down 9 as next digit of the result. 
Result so far: 44518.3959
If we subtract 3591 from 3950, we get 359.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3590, and continue the process.

On to step 13:
399 goes into 3590 8 times with a remainder of 398.
The number 8 becomes the next digit in our result. 
Result so far: 44518.39598
If we take 3192 away from 3590, we end up with 398.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3980, and continue the process.

Going ahead to step 14:
If we divide 3980 by 399, we get 9 and a remainder of 389.
Use 9 as the next digit of our solution. 
Result so far: 44518.395989
The remainder is 389 after subtracting 3591 from 3980.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3890, and continue the process.

On to step 15:
When dividing 3890 by 399, we get 9 with a remainder of 299.
Record the quotient 9 as the next digit in the result. 
Result so far: 44518.3959899
The remainder is 299 after subtracting 3591 from 3890.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2990, and continue the process.

The final outcome is 44518.3959899, with a leftover of 2.99e-06.