We're dividing 16486 by 45 
We want to figure out the number of times 16486 can be divided by 45.

Let's proceed to step 1:
45 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.
Fetch the next digit (6) from the dividend, attach it to 1 and continue: 16 / 45

Moving on to step 2:
45 can be fit into 16 0 times, resulting in a remainder of 16.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 16, we end up with 16.
Append the next digit (4) from the dividend to 16 and continue with: 164 / 45

On to step 3:
164 divided by 45 is 3 with a remainder of 29.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
The remainder is 29 after subtracting 135 from 164.
Bring next digit (8) of the dividend behind the 29 and repeat the process: 298 / 45

Going ahead to step 4:
The number 45 fits into 298 6 times, leaving a remainder of 28.
Record the quotient 6 as the next digit in the result. 
Result so far: 36.0
Deduct 270 from 298 and we're left with 28.
Fetch the next digit (6) from the dividend, attach it to 28 and continue: 286 / 45

Advancing to step 5:
45 goes into 286 6 times with a remainder of 16.
Write down 6 as next digit of the result. 
Result so far: 366.0
If we subtract 270 from 286, we get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Moving on to step 6:
When dividing 160 by 45, we get 3 with a remainder of 25.
Put 3 as the next digit of the answer. 
Result so far: 366.3
Subtracting 135 from 160 leaves us with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

On to step 7:
If we divide 250 by 45, we get 5 and a remainder of 25.
Use 5 as the next digit of our solution. 
Result so far: 366.35
Deduct 225 from 250 and we're left with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

On to step 8:
250 divided by 45 is 5 with a remainder of 25.
The next digit of our result is 5. 
Result so far: 366.355
The remainder is 25 after subtracting 225 from 250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Our division results in 366.355 with a remaining 0.0025.