Let's divide 13623403 by 721
Our goal is to divide 13623403 by 721.

On to step 1:
1 divided by 721 is 0 with a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 1 leaves us with 1.
Include the next digit (3) from the dividend after 1, then repeat: 13 / 721

Let's proceed to step 2:
13 divided by 721 is 0 with a remainder of 13.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 13 leaves us with 13.
Grab the next digit (6) from the dividend, add it to 13, then carry on: 136 / 721

Advancing to step 3:
The number 721 fits into 136 0 times, leaving a remainder of 136.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 136, we end up with 136.
Append the next digit (2) from the dividend to 136 and continue with: 1362 / 721

Let's proceed to step 4:
721 can be fit into 1362 1 times, resulting in a remainder of 641.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtracting 721 from 1362 leaves us with 641.
Take the next digit (3) from the dividend and append it to 641, then repeat: 6413 / 721

Step 5:
When dividing 6413 by 721, we get 8 with a remainder of 645.
Record the quotient 8 as the next digit in the result. 
Result so far: 18.0
The remainder is 645 after subtracting 5768 from 6413.
Take the next digit (4) from the dividend and append it to 645, then repeat: 6454 / 721

Moving on to step 6:
721 goes into 6454 8 times with a remainder of 686.
Write down 8 as next digit of the result. 
Result so far: 188.0
Deduct 5768 from 6454 and we're left with 686.
Bring next digit (0) of the dividend behind the 686 and repeat the process: 6860 / 721

Advancing to step 7:
The number 721 fits into 6860 9 times, leaving a remainder of 371.
Write down 9 as next digit of the result. 
Result so far: 1889.0
Subtracting 6489 from 6860 leaves us with 371.
Append the next digit (3) from the dividend to 371 and continue with: 3713 / 721

Advancing to step 8:
721 can be fit into 3713 5 times, resulting in a remainder of 108.
Record the quotient 5 as the next digit in the result. 
Result so far: 18895.0
The remainder is 108 after subtracting 3605 from 3713.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1080, and continue the process.

Advancing to step 9:
If we divide 1080 by 721, we get 1 and a remainder of 359.
Put 1 as the next digit of the answer. 
Result so far: 18895.1
The remainder is 359 after subtracting 721 from 1080.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3590, and continue the process.

Advancing to step 10:
If we divide 3590 by 721, we get 4 and a remainder of 706.
Record the quotient 4 as the next digit in the result. 
Result so far: 18895.14
Subtract 2884 from 3590 to get 706.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7060, and continue the process.

Going ahead to step 11:
721 can be fit into 7060 9 times, resulting in a remainder of 571.
The number 9 becomes the next digit in our result. 
Result so far: 18895.149
If we subtract 6489 from 7060, we get 571.
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:
If we divide 5710 by 721, we get 7 and a remainder of 663.
The next digit of our result is 7. 
Result so far: 18895.1497
Deduct 5047 from 5710 and we're left with 663.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6630, and continue the process.

Let's proceed to step 13:
When dividing 6630 by 721, we get 9 with a remainder of 141.
Put 9 as the next digit of the answer. 
Result so far: 18895.14979
If we subtract 6489 from 6630, we get 141.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1410, and continue the process.

Advancing to step 14:
The number 721 fits into 1410 1 times, leaving a remainder of 689.
The next digit of our result is 1. 
Result so far: 18895.149791
Subtract 721 from 1410 to get 689.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6890, and continue the process.

Advancing to step 15:
If we divide 6890 by 721, we get 9 and a remainder of 401.
Put 9 as the next digit of the answer. 
Result so far: 18895.1497919
Deduct 6489 from 6890 and we're left with 401.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4010, and continue the process.

Let's proceed to step 16:
The number 721 fits into 4010 5 times, leaving a remainder of 405.
The next digit of our result is 5. 
Result so far: 18895.14979195
Subtract 3605 from 4010 to get 405.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4050, and continue the process.

The final outcome is 18895.14979195, with a leftover of 4.05e-07.