649940 ÷ 45 
Let's see how many times 45 fits into 649940.

Going ahead to step 1:
If we divide 6 by 45, we get 0 and a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Append the next digit (4) from the dividend to 6 and continue with: 64 / 45

Step 2:
45 goes into 64 1 times with a remainder of 19.
The next digit of our result is 1. 
Result so far: 1.0
The remainder is 19 after subtracting 45 from 64.
Take the next digit (9) from the dividend and append it to 19, then repeat: 199 / 45

Going ahead to step 3:
If we divide 199 by 45, we get 4 and a remainder of 19.
Put 4 as the next digit of the answer. 
Result so far: 14.0
Subtracting 180 from 199 leaves us with 19.
Fetch the next digit (9) from the dividend, attach it to 19 and continue: 199 / 45

Let's proceed to step 4:
The number 45 fits into 199 4 times, leaving a remainder of 19.
Put 4 as the next digit of the answer. 
Result so far: 144.0
Deduct 180 from 199 and we're left with 19.
Grab the next digit (4) from the dividend, add it to 19, then carry on: 194 / 45

On to step 5:
When dividing 194 by 45, we get 4 with a remainder of 14.
Put 4 as the next digit of the answer. 
Result so far: 1444.0
The remainder is 14 after subtracting 180 from 194.
Append the next digit (0) from the dividend to 14 and continue with: 140 / 45

Advancing to step 6:
45 can be fit into 140 3 times, resulting in a remainder of 5.
Write down 3 as next digit of the result. 
Result so far: 14443.0
If we take 135 away from 140, we end up with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Going ahead to step 7:
45 goes into 50 1 times with a remainder of 5.
Record the quotient 1 as the next digit in the result. 
Result so far: 14443.1
If we take 45 away from 50, we end up with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

On to step 8:
When dividing 50 by 45, we get 1 with a remainder of 5.
The next digit of our result is 1. 
Result so far: 14443.11
If we subtract 45 from 50, we get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

The final outcome is 14443.11, with a leftover of 0.005.