163659 divided by 45 
We want to figure out the number of times 163659 can be divided by 45.

Going ahead to step 1:
45 goes into 1 0 times with a remainder of 1.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Bring next digit (6) of the dividend behind the 1 and repeat the process: 16 / 45

Going ahead to step 2:
45 goes into 16 0 times with a remainder of 16.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 16 to get 16.
Take the next digit (3) from the dividend and append it to 16, then repeat: 163 / 45

Going ahead to step 3:
If we divide 163 by 45, we get 3 and a remainder of 28.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
Subtracting 135 from 163 leaves us with 28.
Take the next digit (6) from the dividend and append it to 28, then repeat: 286 / 45

Going ahead to step 4:
When dividing 286 by 45, we get 6 with a remainder of 16.
Write down 6 as next digit of the result. 
Result so far: 36.0
If we subtract 270 from 286, we get 16.
Append the next digit (5) from the dividend to 16 and continue with: 165 / 45

Let's proceed to step 5:
The number 45 fits into 165 3 times, leaving a remainder of 30.
Record the quotient 3 as the next digit in the result. 
Result so far: 363.0
Deduct 135 from 165 and we're left with 30.
Append the next digit (9) from the dividend to 30 and continue with: 309 / 45

Step 6:
45 can be fit into 309 6 times, resulting in a remainder of 39.
Record the quotient 6 as the next digit in the result. 
Result so far: 3636.0
Deduct 270 from 309 and we're left with 39.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

Let's proceed to step 7:
When dividing 390 by 45, we get 8 with a remainder of 30.
Write down 8 as next digit of the result. 
Result so far: 3636.8
If we subtract 360 from 390, we get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

On to step 8:
When dividing 300 by 45, we get 6 with a remainder of 30.
Write down 6 as next digit of the result. 
Result so far: 3636.86
Deduct 270 from 300 and we're left with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Let's proceed to step 9:
300 divided by 45 is 6 with a remainder of 30.
Write down 6 as next digit of the result. 
Result so far: 3636.866
Deduct 270 from 300 and we're left with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

The final result is 3636.866 with a remainder of 0.003.