98602809 ÷ 879 
Our goal is to divide 98602809 by 879.

Going ahead to step 1:
879 can be fit into 9 0 times, resulting in a remainder of 9.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 9 and we're left with 9.
Fetch the next digit (8) from the dividend, attach it to 9 and continue: 98 / 879

Going ahead to step 2:
When dividing 98 by 879, we get 0 with a remainder of 98.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 98 after subtracting 0 from 98.
Bring next digit (6) of the dividend behind the 98 and repeat the process: 986 / 879

On to step 3:
986 divided by 879 is 1 with a remainder of 107.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
If we take 879 away from 986, we end up with 107.
Append the next digit (0) from the dividend to 107 and continue with: 1070 / 879

Going ahead to step 4:
1070 divided by 879 is 1 with a remainder of 191.
Put 1 as the next digit of the answer. 
Result so far: 11.0
Deduct 879 from 1070 and we're left with 191.
Include the next digit (2) from the dividend after 191, then repeat: 1912 / 879

Moving on to step 5:
The number 879 fits into 1912 2 times, leaving a remainder of 154.
Put 2 as the next digit of the answer. 
Result so far: 112.0
The remainder is 154 after subtracting 1758 from 1912.
Grab the next digit (8) from the dividend, add it to 154, then carry on: 1548 / 879

On to step 6:
879 goes into 1548 1 times with a remainder of 669.
The next digit of our result is 1. 
Result so far: 1121.0
Subtracting 879 from 1548 leaves us with 669.
Bring next digit (0) of the dividend behind the 669 and repeat the process: 6690 / 879

Going ahead to step 7:
The number 879 fits into 6690 7 times, leaving a remainder of 537.
Put 7 as the next digit of the answer. 
Result so far: 11217.0
The remainder is 537 after subtracting 6153 from 6690.
Take the next digit (9) from the dividend and append it to 537, then repeat: 5379 / 879

Moving on to step 8:
879 goes into 5379 6 times with a remainder of 105.
Put 6 as the next digit of the answer. 
Result so far: 112176.0
If we subtract 5274 from 5379, we get 105.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1050, and continue the process.

Let's proceed to step 9:
879 can be fit into 1050 1 times, resulting in a remainder of 171.
Put 1 as the next digit of the answer. 
Result so far: 112176.1
If we subtract 879 from 1050, we get 171.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1710, and continue the process.

On to step 10:
The number 879 fits into 1710 1 times, leaving a remainder of 831.
The next digit of our result is 1. 
Result so far: 112176.11
Subtract 879 from 1710 to get 831.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8310, and continue the process.

The final result is 112176.11 with a remainder of 0.831.