16638180 divided by 678 
Let's see how many times 678 fits into 16638180.

On to step 1:
678 can be fit into 1 0 times, resulting in a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Fetch the next digit (6) from the dividend, attach it to 1 and continue: 16 / 678

Moving on to step 2:
When dividing 16 by 678, we get 0 with a remainder of 16.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 16 leaves us with 16.
Include the next digit (6) from the dividend after 16, then repeat: 166 / 678

Advancing to step 3:
The number 678 fits into 166 0 times, leaving a remainder of 166.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 166 after subtracting 0 from 166.
Fetch the next digit (3) from the dividend, attach it to 166 and continue: 1663 / 678

On to step 4:
678 goes into 1663 2 times with a remainder of 307.
The next digit of our result is 2. 
Result so far: 2.0
The remainder is 307 after subtracting 1356 from 1663.
Grab the next digit (8) from the dividend, add it to 307, then carry on: 3078 / 678

Let's proceed to step 5:
678 goes into 3078 4 times with a remainder of 366.
The number 4 becomes the next digit in our result. 
Result so far: 24.0
Subtract 2712 from 3078 to get 366.
Fetch the next digit (1) from the dividend, attach it to 366 and continue: 3661 / 678

Going ahead to step 6:
3661 divided by 678 is 5 with a remainder of 271.
The next digit of our result is 5. 
Result so far: 245.0
If we subtract 3390 from 3661, we get 271.
Fetch the next digit (8) from the dividend, attach it to 271 and continue: 2718 / 678

Advancing to step 7:
678 can be fit into 2718 4 times, resulting in a remainder of 6.
The number 4 becomes the next digit in our result. 
Result so far: 2454.0
The remainder is 6 after subtracting 2712 from 2718.
Include the next digit (0) from the dividend after 6, then repeat: 60 / 678

Moving on to step 8:
60 divided by 678 is 0 with a remainder of 60.
Use 0 as the next digit of our solution. 
Result so far: 24540.0
Subtracting 0 from 60 leaves us with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Let's proceed to step 9:
If we divide 600 by 678, we get 0 and a remainder of 600.
Record the quotient 0 as the next digit in the result. 
Result so far: 24540.0
Subtracting 0 from 600 leaves us with 600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6000, and continue the process.

Step 10:
The number 678 fits into 6000 8 times, leaving a remainder of 576.
Write down 8 as next digit of the result. 
Result so far: 24540.08
The remainder is 576 after subtracting 5424 from 6000.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5760, and continue the process.

Step 11:
If we divide 5760 by 678, we get 8 and a remainder of 336.
Record the quotient 8 as the next digit in the result. 
Result so far: 24540.088
The remainder is 336 after subtracting 5424 from 5760.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3360, and continue the process.

After the division, we end up with 24540.088 and a remainder of 0.0336.