Let's divide 15345403 by 723
We want to divide 15345403 by 723.

Advancing to step 1:
The number 723 fits into 1 0 times, leaving a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Append the next digit (5) from the dividend to 1 and continue with: 15 / 723

Step 2:
723 goes into 15 0 times with a remainder of 15.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 15, we get 15.
Fetch the next digit (3) from the dividend, attach it to 15 and continue: 153 / 723

On to step 3:
If we divide 153 by 723, we get 0 and a remainder of 153.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 153 after subtracting 0 from 153.
Bring next digit (4) of the dividend behind the 153 and repeat the process: 1534 / 723

Going ahead to step 4:
723 goes into 1534 2 times with a remainder of 88.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
The remainder is 88 after subtracting 1446 from 1534.
Bring next digit (5) of the dividend behind the 88 and repeat the process: 885 / 723

Step 5:
The number 723 fits into 885 1 times, leaving a remainder of 162.
The number 1 becomes the next digit in our result. 
Result so far: 21.0
If we take 723 away from 885, we end up with 162.
Grab the next digit (4) from the dividend, add it to 162, then carry on: 1624 / 723

Going ahead to step 6:
When dividing 1624 by 723, we get 2 with a remainder of 178.
Use 2 as the next digit of our solution. 
Result so far: 212.0
Subtracting 1446 from 1624 leaves us with 178.
Fetch the next digit (0) from the dividend, attach it to 178 and continue: 1780 / 723

Step 7:
If we divide 1780 by 723, we get 2 and a remainder of 334.
Write down 2 as next digit of the result. 
Result so far: 2122.0
The remainder is 334 after subtracting 1446 from 1780.
Bring next digit (3) of the dividend behind the 334 and repeat the process: 3343 / 723

On to step 8:
When dividing 3343 by 723, we get 4 with a remainder of 451.
Put 4 as the next digit of the answer. 
Result so far: 21224.0
Subtracting 2892 from 3343 leaves us with 451.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4510, and continue the process.

Going ahead to step 9:
When dividing 4510 by 723, we get 6 with a remainder of 172.
Put 6 as the next digit of the answer. 
Result so far: 21224.6
If we subtract 4338 from 4510, we get 172.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1720, and continue the process.

Let's proceed to step 10:
If we divide 1720 by 723, we get 2 and a remainder of 274.
Use 2 as the next digit of our solution. 
Result so far: 21224.62
If we take 1446 away from 1720, we end up with 274.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2740, and continue the process.

Going ahead to step 11:
If we divide 2740 by 723, we get 3 and a remainder of 571.
Use 3 as the next digit of our solution. 
Result so far: 21224.623
The remainder is 571 after subtracting 2169 from 2740.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5710, and continue the process.

On to step 12:
723 goes into 5710 7 times with a remainder of 649.
Record the quotient 7 as the next digit in the result. 
Result so far: 21224.6237
Deduct 5061 from 5710 and we're left with 649.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6490, and continue the process.

Let's proceed to step 13:
6490 divided by 723 is 8 with a remainder of 706.
The next digit of our result is 8. 
Result so far: 21224.62378
The remainder is 706 after subtracting 5784 from 6490.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7060, and continue the process.

Advancing to step 14:
723 can be fit into 7060 9 times, resulting in a remainder of 553.
Record the quotient 9 as the next digit in the result. 
Result so far: 21224.623789
Subtracting 6507 from 7060 leaves us with 553.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5530, and continue the process.

Moving on to step 15:
723 can be fit into 5530 7 times, resulting in a remainder of 469.
Put 7 as the next digit of the answer. 
Result so far: 21224.6237897
The remainder is 469 after subtracting 5061 from 5530.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4690, and continue the process.

Advancing to step 16:
The number 723 fits into 4690 6 times, leaving a remainder of 352.
Use 6 as the next digit of our solution. 
Result so far: 21224.62378976
Subtracting 4338 from 4690 leaves us with 352.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3520, and continue the process.

In conclusion, the division gives 21224.62378976 with a balance of 3.52e-07.