We look at the division of 123243 by 84 
Let's see how many times 84 fits into 123243.

Let's proceed to step 1:
If we divide 1 by 84, we get 0 and a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Take the next digit (2) from the dividend and append it to 1, then repeat: 12 / 84

Going ahead to step 2:
If we divide 12 by 84, we get 0 and a remainder of 12.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 12 to get 12.
Append the next digit (3) from the dividend to 12 and continue with: 123 / 84

Moving on to step 3:
84 can be fit into 123 1 times, resulting in a remainder of 39.
The next digit of our result is 1. 
Result so far: 1.0
Deduct 84 from 123 and we're left with 39.
Bring next digit (2) of the dividend behind the 39 and repeat the process: 392 / 84

Advancing to step 4:
If we divide 392 by 84, we get 4 and a remainder of 56.
Put 4 as the next digit of the answer. 
Result so far: 14.0
Deduct 336 from 392 and we're left with 56.
Grab the next digit (4) from the dividend, add it to 56, then carry on: 564 / 84

Moving on to step 5:
84 goes into 564 6 times with a remainder of 60.
Record the quotient 6 as the next digit in the result. 
Result so far: 146.0
Subtracting 504 from 564 leaves us with 60.
Append the next digit (3) from the dividend to 60 and continue with: 603 / 84

Step 6:
603 divided by 84 is 7 with a remainder of 15.
Record the quotient 7 as the next digit in the result. 
Result so far: 1467.0
If we subtract 588 from 603, we get 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Going ahead to step 7:
84 can be fit into 150 1 times, resulting in a remainder of 66.
Record the quotient 1 as the next digit in the result. 
Result so far: 1467.1
Subtract 84 from 150 to get 66.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

On to step 8:
When dividing 660 by 84, we get 7 with a remainder of 72.
Write down 7 as next digit of the result. 
Result so far: 1467.17
If we take 588 away from 660, we end up 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.

Let's proceed to step 9:
84 goes into 720 8 times with a remainder of 48.
Write down 8 as next digit of the result. 
Result so far: 1467.178
Subtracting 672 from 720 leaves us with 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

On to step 10:
The number 84 fits into 480 5 times, leaving a remainder of 60.
Record the quotient 5 as the next digit in the result. 
Result so far: 1467.1785
The remainder is 60 after subtracting 420 from 480.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Advancing to step 11:
If we divide 600 by 84, we get 7 and a remainder of 12.
Use 7 as the next digit of our solution. 
Result so far: 1467.17857
If we subtract 588 from 600, we get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

On to step 12:
84 goes into 120 1 times with a remainder of 36.
Use 1 as the next digit of our solution. 
Result so far: 1467.178571
Subtract 84 from 120 to get 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

On to step 13:
84 can be fit into 360 4 times, resulting in a remainder of 24.
Put 4 as the next digit of the answer. 
Result so far: 1467.1785714
Subtract 336 from 360 to get 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

On to step 14:
240 divided by 84 is 2 with a remainder of 72.
The number 2 becomes the next digit in our result. 
Result so far: 1467.17857142
Deduct 168 from 240 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.

In conclusion, the division gives 1467.17857142 with a balance of 7.2e-08.