782129 ÷ 45 
We want to divide 782129 by 45.

On to step 1:
When dividing 7 by 45, we get 0 with a remainder of 7.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 7, we end up with 7.
Grab the next digit (8) from the dividend, add it to 7, then carry on: 78 / 45

Going ahead to step 2:
When dividing 78 by 45, we get 1 with a remainder of 33.
Write down 1 as next digit of the result. 
Result so far: 1.0
Subtract 45 from 78 to get 33.
Bring next digit (2) of the dividend behind the 33 and repeat the process: 332 / 45

Step 3:
45 goes into 332 7 times with a remainder of 17.
Put 7 as the next digit of the answer. 
Result so far: 17.0
Deduct 315 from 332 and we're left with 17.
Fetch the next digit (1) from the dividend, attach it to 17 and continue: 171 / 45

Going ahead to step 4:
If we divide 171 by 45, we get 3 and a remainder of 36.
Put 3 as the next digit of the answer. 
Result so far: 173.0
Deduct 135 from 171 and we're left with 36.
Bring next digit (2) of the dividend behind the 36 and repeat the process: 362 / 45

On to step 5:
362 divided by 45 is 8 with a remainder of 2.
Record the quotient 8 as the next digit in the result. 
Result so far: 1738.0
Subtract 360 from 362 to get 2.
Bring next digit (9) of the dividend behind the 2 and repeat the process: 29 / 45

On to step 6:
If we divide 29 by 45, we get 0 and a remainder of 29.
Use 0 as the next digit of our solution. 
Result so far: 17380.0
If we subtract 0 from 29, we get 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

Moving on to step 7:
290 divided by 45 is 6 with a remainder of 20.
Put 6 as the next digit of the answer. 
Result so far: 17380.6
Subtracting 270 from 290 leaves us with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

On to step 8:
45 goes into 200 4 times with a remainder of 20.
The number 4 becomes the next digit in our result. 
Result so far: 17380.64
The remainder is 20 after subtracting 180 from 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

On to step 9:
When dividing 200 by 45, we get 4 with a remainder of 20.
Use 4 as the next digit of our solution. 
Result so far: 17380.644
The remainder is 20 after subtracting 180 from 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Our division results in 17380.644 with a remaining 0.002.