423123 divided by 84 
Our goal is to divide 423123 by 84.

Step 1:
4 divided by 84 is 0 with a remainder of 4.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 4, we get 4.
Take the next digit (2) from the dividend and append it to 4, then repeat: 42 / 84

Moving on to step 2:
84 can be fit into 42 0 times, resulting in a remainder of 42.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 42 to get 42.
Bring next digit (3) of the dividend behind the 42 and repeat the process: 423 / 84

Going ahead to step 3:
84 can be fit into 423 5 times, resulting in a remainder of 3.
Record the quotient 5 as the next digit in the result. 
Result so far: 5.0
Subtracting 420 from 423 leaves us with 3.
Grab the next digit (1) from the dividend, add it to 3, then carry on: 31 / 84

On to step 4:
84 can be fit into 31 0 times, resulting in a remainder of 31.
Use 0 as the next digit of our solution. 
Result so far: 50.0
The remainder is 31 after subtracting 0 from 31.
Fetch the next digit (2) from the dividend, attach it to 31 and continue: 312 / 84

Step 5:
The number 84 fits into 312 3 times, leaving a remainder of 60.
Use 3 as the next digit of our solution. 
Result so far: 503.0
The remainder is 60 after subtracting 252 from 312.
Fetch the next digit (3) from the dividend, attach it to 60 and continue: 603 / 84

Moving on to step 6:
603 divided by 84 is 7 with a remainder of 15.
Use 7 as the next digit of our solution. 
Result so far: 5037.0
Subtracting 588 from 603 leaves us with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Moving on to step 7:
84 can be fit into 150 1 times, resulting in a remainder of 66.
Write down 1 as next digit of the result. 
Result so far: 5037.1
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.

Let's proceed 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: 5037.17
Subtract 588 from 660 to get 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

Moving on to step 9:
720 divided by 84 is 8 with a remainder of 48.
The next digit of our result is 8. 
Result so far: 5037.178
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.

Step 10:
When dividing 480 by 84, we get 5 with a remainder of 60.
The next digit of our result is 5. 
Result so far: 5037.1785
If we take 420 away from 480, 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.

Going ahead to step 11:
When dividing 600 by 84, we get 7 with a remainder of 12.
Record the quotient 7 as the next digit in the result. 
Result so far: 5037.17857
Subtracting 588 from 600 leaves us with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Advancing to step 12:
The number 84 fits into 120 1 times, leaving a remainder of 36.
Record the quotient 1 as the next digit in the result. 
Result so far: 5037.178571
If we take 84 away from 120, we end up with 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Step 13:
When dividing 360 by 84, we get 4 with a remainder of 24.
Write down 4 as next digit of the result. 
Result so far: 5037.1785714
Deduct 336 from 360 and we're left with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Step 14:
If we divide 240 by 84, we get 2 and a remainder of 72.
The next digit of our result is 2. 
Result so far: 5037.17857142
Subtracting 168 from 240 leaves us 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 5037.17857142 with a balance of 7.2e-08.