668665 divided by 45 
We want to figure out the number of times 668665 can be divided by 45.

Advancing to step 1:
If we divide 6 by 45, we get 0 and a remainder of 6.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Include the next digit (6) from the dividend after 6, then repeat: 66 / 45

Let's proceed to step 2:
45 goes into 66 1 times with a remainder of 21.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Deduct 45 from 66 and we're left with 21.
Take the next digit (8) from the dividend and append it to 21, then repeat: 218 / 45

Going ahead to step 3:
When dividing 218 by 45, we get 4 with a remainder of 38.
Record the quotient 4 as the next digit in the result. 
Result so far: 14.0
The remainder is 38 after subtracting 180 from 218.
Bring next digit (6) of the dividend behind the 38 and repeat the process: 386 / 45

On to step 4:
386 divided by 45 is 8 with a remainder of 26.
Use 8 as the next digit of our solution. 
Result so far: 148.0
If we take 360 away from 386, we end up with 26.
Append the next digit (6) from the dividend to 26 and continue with: 266 / 45

On to step 5:
If we divide 266 by 45, we get 5 and a remainder of 41.
Put 5 as the next digit of the answer. 
Result so far: 1485.0
If we take 225 away from 266, we end up with 41.
Fetch the next digit (5) from the dividend, attach it to 41 and continue: 415 / 45

On to step 6:
The number 45 fits into 415 9 times, leaving a remainder of 10.
Record the quotient 9 as the next digit in the result. 
Result so far: 14859.0
If we take 405 away from 415, we end up with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Advancing to step 7:
45 goes into 100 2 times with a remainder of 10.
Write down 2 as next digit of the result. 
Result so far: 14859.2
If we take 90 away from 100, we end up with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Going ahead to step 8:
The number 45 fits into 100 2 times, leaving a remainder of 10.
Write down 2 as next digit of the result. 
Result so far: 14859.22
Subtracting 90 from 100 leaves us with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

The final outcome is 14859.22, with a leftover of 0.01.