Let's divide 188139 by 90
Let's see how many times 90 fits into 188139.

Step 1:
90 can be fit into 1 0 times, resulting in a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Take the next digit (8) from the dividend and append it to 1, then repeat: 18 / 90

Going ahead to step 2:
The number 90 fits into 18 0 times, leaving a remainder of 18.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 18, we end up with 18.
Include the next digit (8) from the dividend after 18, then repeat: 188 / 90

On to step 3:
If we divide 188 by 90, we get 2 and a remainder of 8.
Use 2 as the next digit of our solution. 
Result so far: 2.0
If we subtract 180 from 188, we get 8.
Include the next digit (1) from the dividend after 8, then repeat: 81 / 90

Let's proceed to step 4:
90 can be fit into 81 0 times, resulting in a remainder of 81.
Write down 0 as next digit of the result. 
Result so far: 20.0
If we take 0 away from 81, we end up with 81.
Bring next digit (3) of the dividend behind the 81 and repeat the process: 813 / 90

Advancing to step 5:
90 can be fit into 813 9 times, resulting in a remainder of 3.
Write down 9 as next digit of the result. 
Result so far: 209.0
Subtracting 810 from 813 leaves us with 3.
Fetch the next digit (9) from the dividend, attach it to 3 and continue: 39 / 90

Going ahead to step 6:
The number 90 fits into 39 0 times, leaving a remainder of 39.
Write down 0 as next digit of the result. 
Result so far: 2090.0
Deduct 0 from 39 and we're left 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.

Step 7:
If we divide 390 by 90, we get 4 and a remainder of 30.
Use 4 as the next digit of our solution. 
Result so far: 2090.4
Subtracting 360 from 390 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.

Going ahead to step 8:
90 can be fit into 300 3 times, resulting in a remainder of 30.
Record the quotient 3 as the next digit in the result. 
Result so far: 2090.43
If we subtract 270 from 300, we 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.

Step 9:
90 can be fit into 300 3 times, resulting in a remainder of 30.
The next digit of our result is 3. 
Result so far: 2090.433
If we take 270 away from 300, we end up 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 quotient of the division is 2090.433, and the remainder is 0.003.