We look at the division of 123234 by 90 
Our goal is to divide 123234 by 90.

Step 1:
The number 90 fits into 1 0 times, leaving a remainder of 1.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Fetch the next digit (2) from the dividend, attach it to 1 and continue: 12 / 90

On to step 2:
90 goes into 12 0 times with a remainder of 12.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 12 to get 12.
Grab the next digit (3) from the dividend, add it to 12, then carry on: 123 / 90

Going ahead to step 3:
If we divide 123 by 90, we get 1 and a remainder of 33.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Deduct 90 from 123 and we're left with 33.
Append the next digit (2) from the dividend to 33 and continue with: 332 / 90

Let's proceed to step 4:
90 goes into 332 3 times with a remainder of 62.
Use 3 as the next digit of our solution. 
Result so far: 13.0
Subtract 270 from 332 to get 62.
Bring next digit (3) of the dividend behind the 62 and repeat the process: 623 / 90

Moving on to step 5:
90 can be fit into 623 6 times, resulting in a remainder of 83.
Put 6 as the next digit of the answer. 
Result so far: 136.0
Subtracting 540 from 623 leaves us with 83.
Append the next digit (4) from the dividend to 83 and continue with: 834 / 90

Advancing to step 6:
90 goes into 834 9 times with a remainder of 24.
The next digit of our result is 9. 
Result so far: 1369.0
The remainder is 24 after subtracting 810 from 834.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Step 7:
90 goes into 240 2 times with a remainder of 60.
Use 2 as the next digit of our solution. 
Result so far: 1369.2
If we take 180 away from 240, we end up with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Moving on to step 8:
90 can be fit into 600 6 times, resulting in a remainder of 60.
Write down 6 as next digit of the result. 
Result so far: 1369.26
Subtracting 540 from 600 leaves us with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Let's proceed to step 9:
If we divide 600 by 90, we get 6 and a remainder of 60.
Write down 6 as next digit of the result. 
Result so far: 1369.266
If we take 540 away from 600, we end up with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

The quotient of the division is 1369.266, and the remainder is 0.006.