43102 ÷ 30 
Let's see how many times 30 fits into 43102.

Moving on to step 1:
4 divided by 30 is 0 with a remainder of 4.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 4 after subtracting 0 from 4.
Bring next digit (3) of the dividend behind the 4 and repeat the process: 43 / 30

Let's proceed to step 2:
30 goes into 43 1 times with a remainder of 13.
The next digit of our result is 1. 
Result so far: 1.0
If we take 30 away from 43, we end up with 13.
Include the next digit (1) from the dividend after 13, then repeat: 131 / 30

Moving on to step 3:
If we divide 131 by 30, we get 4 and a remainder of 11.
Record the quotient 4 as the next digit in the result. 
Result so far: 14.0
Deduct 120 from 131 and we're left with 11.
Take the next digit (0) from the dividend and append it to 11, then repeat: 110 / 30

Let's proceed to step 4:
If we divide 110 by 30, we get 3 and a remainder of 20.
Use 3 as the next digit of our solution. 
Result so far: 143.0
The remainder is 20 after subtracting 90 from 110.
Fetch the next digit (2) from the dividend, attach it to 20 and continue: 202 / 30

On to step 5:
202 divided by 30 is 6 with a remainder of 22.
Put 6 as the next digit of the answer. 
Result so far: 1436.0
If we take 180 away from 202, we end up with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Step 6:
The number 30 fits into 220 7 times, leaving a remainder of 10.
The next digit of our result is 7. 
Result so far: 1436.7
Deduct 210 from 220 and we're left with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

On to step 7:
The number 30 fits into 100 3 times, leaving a remainder of 10.
Put 3 as the next digit of the answer. 
Result so far: 1436.73
If we subtract 90 from 100, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Moving on to step 8:
When dividing 100 by 30, we get 3 with a remainder of 10.
Write down 3 as next digit of the result. 
Result so far: 1436.733
If we take 90 away from 100, we end up with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

The quotient of the division is 1436.733, and the remainder is 0.001.