79117781 ÷ 489 
Our goal is to divide 79117781 by 489.

Advancing to step 1:
When dividing 7 by 489, we get 0 with a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 7 to get 7.
Include the next digit (9) from the dividend after 7, then repeat: 79 / 489

Advancing to step 2:
When dividing 79 by 489, we get 0 with a remainder of 79.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 79, we end up with 79.
Fetch the next digit (1) from the dividend, attach it to 79 and continue: 791 / 489

Going ahead to step 3:
489 goes into 791 1 times with a remainder of 302.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtracting 489 from 791 leaves us with 302.
Include the next digit (1) from the dividend after 302, then repeat: 3021 / 489

Let's proceed to step 4:
When dividing 3021 by 489, we get 6 with a remainder of 87.
Put 6 as the next digit of the answer. 
Result so far: 16.0
Deduct 2934 from 3021 and we're left with 87.
Fetch the next digit (7) from the dividend, attach it to 87 and continue: 877 / 489

Going ahead to step 5:
489 goes into 877 1 times with a remainder of 388.
Put 1 as the next digit of the answer. 
Result so far: 161.0
Deduct 489 from 877 and we're left with 388.
Append the next digit (7) from the dividend to 388 and continue with: 3887 / 489

Moving on to step 6:
489 can be fit into 3887 7 times, resulting in a remainder of 464.
The next digit of our result is 7. 
Result so far: 1617.0
If we take 3423 away from 3887, we end up with 464.
Take the next digit (8) from the dividend and append it to 464, then repeat: 4648 / 489

Step 7:
489 goes into 4648 9 times with a remainder of 247.
Put 9 as the next digit of the answer. 
Result so far: 16179.0
If we subtract 4401 from 4648, we get 247.
Fetch the next digit (1) from the dividend, attach it to 247 and continue: 2471 / 489

Going ahead to step 8:
The number 489 fits into 2471 5 times, leaving a remainder of 26.
Record the quotient 5 as the next digit in the result. 
Result so far: 161795.0
Subtract 2445 from 2471 to get 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Going ahead to step 9:
The number 489 fits into 260 0 times, leaving a remainder of 260.
The number 0 becomes the next digit in our result. 
Result so far: 161795.0
The remainder is 260 after subtracting 0 from 260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2600, and continue the process.

Step 10:
489 can be fit into 2600 5 times, resulting in a remainder of 155.
The number 5 becomes the next digit in our result. 
Result so far: 161795.05
If we subtract 2445 from 2600, we get 155.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1550, and continue the process.

Let's proceed to step 11:
1550 divided by 489 is 3 with a remainder of 83.
Use 3 as the next digit of our solution. 
Result so far: 161795.053
The remainder is 83 after subtracting 1467 from 1550.
Since there are no more digits in the dividend, we add a zero to the remainder making it 830, and continue the process.

On to step 12:
If we divide 830 by 489, we get 1 and a remainder of 341.
Write down 1 as next digit of the result. 
Result so far: 161795.0531
The remainder is 341 after subtracting 489 from 830.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3410, and continue the process.

Moving on to step 13:
489 can be fit into 3410 6 times, resulting in a remainder of 476.
Write down 6 as next digit of the result. 
Result so far: 161795.05316
Deduct 2934 from 3410 and we're left with 476.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4760, and continue the process.

Going ahead to step 14:
If we divide 4760 by 489, we get 9 and a remainder of 359.
Put 9 as the next digit of the answer. 
Result so far: 161795.053169
Subtract 4401 from 4760 to get 359.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3590, and continue the process.

Step 15:
3590 divided by 489 is 7 with a remainder of 167.
The number 7 becomes the next digit in our result. 
Result so far: 161795.0531697
If we take 3423 away from 3590, we end up with 167.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1670, and continue the process.

Going ahead to step 16:
489 can be fit into 1670 3 times, resulting in a remainder of 203.
Record the quotient 3 as the next digit in the result. 
Result so far: 161795.05316973
If we subtract 1467 from 1670, we get 203.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2030, and continue the process.

Our division results in 161795.05316973 with a remaining 2.03e-07.