We look at the division of 8320869 by 721 
We're looking to find how many times 721 goes into 8320869.

Moving on to step 1:
If we divide 8 by 721, we get 0 and a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Bring next digit (3) of the dividend behind the 8 and repeat the process: 83 / 721

Let's proceed to step 2:
The number 721 fits into 83 0 times, leaving a remainder of 83.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 83 after subtracting 0 from 83.
Include the next digit (2) from the dividend after 83, then repeat: 832 / 721

Let's proceed to step 3:
The number 721 fits into 832 1 times, leaving a remainder of 111.
Write down 1 as next digit of the result. 
Result so far: 1.0
Deduct 721 from 832 and we're left with 111.
Bring next digit (0) of the dividend behind the 111 and repeat the process: 1110 / 721

Moving on to step 4:
1110 divided by 721 is 1 with a remainder of 389.
The next digit of our result is 1. 
Result so far: 11.0
Subtracting 721 from 1110 leaves us with 389.
Grab the next digit (8) from the dividend, add it to 389, then carry on: 3898 / 721

Going ahead to step 5:
If we divide 3898 by 721, we get 5 and a remainder of 293.
Write down 5 as next digit of the result. 
Result so far: 115.0
If we take 3605 away from 3898, we end up with 293.
Bring next digit (6) of the dividend behind the 293 and repeat the process: 2936 / 721

Advancing to step 6:
2936 divided by 721 is 4 with a remainder of 52.
Put 4 as the next digit of the answer. 
Result so far: 1154.0
If we subtract 2884 from 2936, we get 52.
Append the next digit (9) from the dividend to 52 and continue with: 529 / 721

Moving on to step 7:
721 can be fit into 529 0 times, resulting in a remainder of 529.
Use 0 as the next digit of our solution. 
Result so far: 11540.0
Subtract 0 from 529 to get 529.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5290, and continue the process.

Let's proceed to step 8:
When dividing 5290 by 721, we get 7 with a remainder of 243.
Put 7 as the next digit of the answer. 
Result so far: 11540.7
If we take 5047 away from 5290, we end up with 243.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2430, and continue the process.

Step 9:
721 can be fit into 2430 3 times, resulting in a remainder of 267.
Use 3 as the next digit of our solution. 
Result so far: 11540.73
If we take 2163 away from 2430, we end up with 267.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2670, and continue the process.

Advancing to step 10:
721 can be fit into 2670 3 times, resulting in a remainder of 507.
The number 3 becomes the next digit in our result. 
Result so far: 11540.733
Deduct 2163 from 2670 and we're left with 507.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5070, and continue the process.

The quotient of the division is 11540.733, and the remainder is 0.0507.