We look at the division of 17430 by 87 
Let's see how many times 87 fits into 17430.

On to step 1:
87 can be fit into 1 0 times, resulting in a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Bring next digit (7) of the dividend behind the 1 and repeat the process: 17 / 87

Going ahead to step 2:
17 divided by 87 is 0 with a remainder of 17.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 17, we end up with 17.
Take the next digit (4) from the dividend and append it to 17, then repeat: 174 / 87

On to step 3:
87 can be fit into 174 2 times, resulting in a remainder of 0.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
Deduct 174 from 174 and we're left with 0.
Grab the next digit (3) from the dividend, add it to 0, then carry on: 3 / 87

Moving on to step 4:
87 can be fit into 3 0 times, resulting in a remainder of 3.
Use 0 as the next digit of our solution. 
Result so far: 20.0
Deduct 0 from 3 and we're left with 3.
Include the next digit (0) from the dividend after 3, then repeat: 30 / 87

On to step 5:
If we divide 30 by 87, we get 0 and a remainder of 30.
Use 0 as the next digit of our solution. 
Result so far: 200.0
Subtract 0 from 30 to get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

On to step 6:
87 can be fit into 300 3 times, resulting in a remainder of 39.
The number 3 becomes the next digit in our result. 
Result so far: 200.3
Subtracting 261 from 300 leaves us with 39.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

Advancing to step 7:
The number 87 fits into 390 4 times, leaving a remainder of 42.
Write down 4 as next digit of the result. 
Result so far: 200.34
Subtracting 348 from 390 leaves us with 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Advancing to step 8:
420 divided by 87 is 4 with a remainder of 72.
Put 4 as the next digit of the answer. 
Result so far: 200.344
Deduct 348 from 420 and we're left with 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

The quotient of the division is 200.344, and the remainder is 0.0072.