357999 ÷ 45 
Our goal is to divide 357999 by 45.

Step 1:
45 goes into 3 0 times with a remainder of 3.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 3 leaves us with 3.
Append the next digit (5) from the dividend to 3 and continue with: 35 / 45

Step 2:
45 goes into 35 0 times with a remainder of 35.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 35 to get 35.
Grab the next digit (7) from the dividend, add it to 35, then carry on: 357 / 45

On to step 3:
45 goes into 357 7 times with a remainder of 42.
Put 7 as the next digit of the answer. 
Result so far: 7.0
If we subtract 315 from 357, we get 42.
Bring next digit (9) of the dividend behind the 42 and repeat the process: 429 / 45

On to step 4:
The number 45 fits into 429 9 times, leaving a remainder of 24.
Use 9 as the next digit of our solution. 
Result so far: 79.0
Subtract 405 from 429 to get 24.
Fetch the next digit (9) from the dividend, attach it to 24 and continue: 249 / 45

Moving on to step 5:
45 can be fit into 249 5 times, resulting in a remainder of 24.
Write down 5 as next digit of the result. 
Result so far: 795.0
Deduct 225 from 249 and we're left with 24.
Grab the next digit (9) from the dividend, add it to 24, then carry on: 249 / 45

Advancing to step 6:
The number 45 fits into 249 5 times, leaving a remainder of 24.
Record the quotient 5 as the next digit in the result. 
Result so far: 7955.0
Deduct 225 from 249 and we're left with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Moving on to step 7:
The number 45 fits into 240 5 times, leaving a remainder of 15.
Use 5 as the next digit of our solution. 
Result so far: 7955.5
The remainder is 15 after subtracting 225 from 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Going ahead to step 8:
150 divided by 45 is 3 with a remainder of 15.
Write down 3 as next digit of the result. 
Result so far: 7955.53
The remainder is 15 after subtracting 135 from 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

On to step 9:
45 goes into 150 3 times with a remainder of 15.
The next digit of our result is 3. 
Result so far: 7955.533
The remainder is 15 after subtracting 135 from 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Our division results in 7955.533 with a remaining 0.0015.