We look at the division of 745680 by 45 
We're looking to find how many times 45 goes into 745680.

On to step 1:
45 goes into 7 0 times with a remainder of 7.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 7 and we're left with 7.
Append the next digit (4) from the dividend to 7 and continue with: 74 / 45

Step 2:
When dividing 74 by 45, we get 1 with a remainder of 29.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtracting 45 from 74 leaves us with 29.
Bring next digit (5) of the dividend behind the 29 and repeat the process: 295 / 45

On to step 3:
The number 45 fits into 295 6 times, leaving a remainder of 25.
Write down 6 as next digit of the result. 
Result so far: 16.0
Deduct 270 from 295 and we're left with 25.
Take the next digit (6) from the dividend and append it to 25, then repeat: 256 / 45

Let's proceed to step 4:
256 divided by 45 is 5 with a remainder of 31.
Use 5 as the next digit of our solution. 
Result so far: 165.0
Deduct 225 from 256 and we're left with 31.
Fetch the next digit (8) from the dividend, attach it to 31 and continue: 318 / 45

Step 5:
The number 45 fits into 318 7 times, leaving a remainder of 3.
Write down 7 as next digit of the result. 
Result so far: 1657.0
Subtract 315 from 318 to get 3.
Grab the next digit (0) from the dividend, add it to 3, then carry on: 30 / 45

On to step 6:
The number 45 fits into 30 0 times, leaving a remainder of 30.
The number 0 becomes the next digit in our result. 
Result so far: 16570.0
Subtracting 0 from 30 leaves us 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.

Moving on to step 7:
If we divide 300 by 45, we get 6 and a remainder of 30.
Put 6 as the next digit of the answer. 
Result so far: 16570.6
Subtracting 270 from 300 leaves us 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 8:
45 goes into 300 6 times with a remainder of 30.
Put 6 as the next digit of the answer. 
Result so far: 16570.66
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 outcome is 16570.66, with a leftover of 0.03.