We're dividing 12643343 by 690 
Our goal is to divide 12643343 by 690.

Let's proceed to step 1:
If we divide 1 by 690, we get 0 and a remainder of 1.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Grab the next digit (2) from the dividend, add it to 1, then carry on: 12 / 690

Moving on to step 2:
690 can be fit into 12 0 times, resulting in a remainder of 12.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 12 to get 12.
Append the next digit (6) from the dividend to 12 and continue with: 126 / 690

Moving on to step 3:
690 goes into 126 0 times with a remainder of 126.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 126 and we're left with 126.
Append the next digit (4) from the dividend to 126 and continue with: 1264 / 690

On to step 4:
The number 690 fits into 1264 1 times, leaving a remainder of 574.
The next digit of our result is 1. 
Result so far: 1.0
Deduct 690 from 1264 and we're left with 574.
Take the next digit (3) from the dividend and append it to 574, then repeat: 5743 / 690

On to step 5:
690 goes into 5743 8 times with a remainder of 223.
Record the quotient 8 as the next digit in the result. 
Result so far: 18.0
If we subtract 5520 from 5743, we get 223.
Bring next digit (3) of the dividend behind the 223 and repeat the process: 2233 / 690

Step 6:
690 can be fit into 2233 3 times, resulting in a remainder of 163.
Use 3 as the next digit of our solution. 
Result so far: 183.0
If we take 2070 away from 2233, we end up with 163.
Take the next digit (4) from the dividend and append it to 163, then repeat: 1634 / 690

Let's proceed to step 7:
690 goes into 1634 2 times with a remainder of 254.
Put 2 as the next digit of the answer. 
Result so far: 1832.0
Subtracting 1380 from 1634 leaves us with 254.
Include the next digit (3) from the dividend after 254, then repeat: 2543 / 690

Advancing to step 8:
If we divide 2543 by 690, we get 3 and a remainder of 473.
Write down 3 as next digit of the result. 
Result so far: 18323.0
If we take 2070 away from 2543, we end up with 473.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4730, and continue the process.

Let's proceed to step 9:
The number 690 fits into 4730 6 times, leaving a remainder of 590.
The number 6 becomes the next digit in our result. 
Result so far: 18323.6
Subtract 4140 from 4730 to get 590.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5900, and continue the process.

Going ahead to step 10:
690 goes into 5900 8 times with a remainder of 380.
Write down 8 as next digit of the result. 
Result so far: 18323.68
If we take 5520 away from 5900, we end up with 380.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3800, and continue the process.

Going ahead to step 11:
When dividing 3800 by 690, we get 5 with a remainder of 350.
Record the quotient 5 as the next digit in the result. 
Result so far: 18323.685
If we take 3450 away from 3800, we end up with 350.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3500, and continue the process.

Going ahead to step 12:
The number 690 fits into 3500 5 times, leaving a remainder of 50.
Put 5 as the next digit of the answer. 
Result so far: 18323.6855
Subtracting 3450 from 3500 leaves us with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

In conclusion, the division gives 18323.6855 with a balance of 0.0005.