16786406 ÷ 486 
We're looking to find how many times 486 goes into 16786406.

Step 1:
If we divide 1 by 486, we get 0 and a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 1 leaves us with 1.
Take the next digit (6) from the dividend and append it to 1, then repeat: 16 / 486

Advancing to step 2:
16 divided by 486 is 0 with a remainder of 16.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 16 after subtracting 0 from 16.
Append the next digit (7) from the dividend to 16 and continue with: 167 / 486

Moving on to step 3:
167 divided by 486 is 0 with a remainder of 167.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 167, we get 167.
Bring next digit (8) of the dividend behind the 167 and repeat the process: 1678 / 486

Going ahead to step 4:
1678 divided by 486 is 3 with a remainder of 220.
Record the quotient 3 as the next digit in the result. 
Result so far: 3.0
Subtract 1458 from 1678 to get 220.
Append the next digit (6) from the dividend to 220 and continue with: 2206 / 486

On to step 5:
The number 486 fits into 2206 4 times, leaving a remainder of 262.
The next digit of our result is 4. 
Result so far: 34.0
Subtracting 1944 from 2206 leaves us with 262.
Append the next digit (4) from the dividend to 262 and continue with: 2624 / 486

Step 6:
When dividing 2624 by 486, we get 5 with a remainder of 194.
The next digit of our result is 5. 
Result so far: 345.0
If we take 2430 away from 2624, we end up with 194.
Include the next digit (0) from the dividend after 194, then repeat: 1940 / 486

Let's proceed to step 7:
If we divide 1940 by 486, we get 3 and a remainder of 482.
The next digit of our result is 3. 
Result so far: 3453.0
If we take 1458 away from 1940, we end up with 482.
Fetch the next digit (6) from the dividend, attach it to 482 and continue: 4826 / 486

Step 8:
4826 divided by 486 is 9 with a remainder of 452.
Use 9 as the next digit of our solution. 
Result so far: 34539.0
Subtracting 4374 from 4826 leaves us with 452.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4520, and continue the process.

On to step 9:
486 goes into 4520 9 times with a remainder of 146.
Record the quotient 9 as the next digit in the result. 
Result so far: 34539.9
Subtract 4374 from 4520 to get 146.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1460, and continue the process.

Advancing to step 10:
When dividing 1460 by 486, we get 3 with a remainder of 2.
Write down 3 as next digit of the result. 
Result so far: 34539.93
Deduct 1458 from 1460 and we're left with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

On to step 11:
If we divide 20 by 486, we get 0 and a remainder of 20.
Record the quotient 0 as the next digit in the result. 
Result so far: 34539.93
Subtract 0 from 20 to get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Moving on to step 12:
The number 486 fits into 200 0 times, leaving a remainder of 200.
Write down 0 as next digit of the result. 
Result so far: 34539.93
The remainder is 200 after subtracting 0 from 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

The final result is 34539.93 with a remainder of 0.002.