98580 ÷ 77 
We want to figure out the number of times 98580 can be divided by 77.

Advancing to step 1:
The number 77 fits into 9 0 times, leaving a remainder of 9.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 9 to get 9.
Fetch the next digit (8) from the dividend, attach it to 9 and continue: 98 / 77

Step 2:
The number 77 fits into 98 1 times, leaving a remainder of 21.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we subtract 77 from 98, we get 21.
Bring next digit (5) of the dividend behind the 21 and repeat the process: 215 / 77

Advancing to step 3:
77 can be fit into 215 2 times, resulting in a remainder of 61.
Write down 2 as next digit of the result. 
Result so far: 12.0
If we take 154 away from 215, we end up with 61.
Include the next digit (8) from the dividend after 61, then repeat: 618 / 77

Going ahead to step 4:
When dividing 618 by 77, we get 8 with a remainder of 2.
The next digit of our result is 8. 
Result so far: 128.0
Subtract 616 from 618 to get 2.
Bring next digit (0) of the dividend behind the 2 and repeat the process: 20 / 77

Going ahead to step 5:
If we divide 20 by 77, we get 0 and a remainder of 20.
The number 0 becomes the next digit in our result. 
Result so far: 1280.0
If we subtract 0 from 20, we get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Moving on to step 6:
The number 77 fits into 200 2 times, leaving a remainder of 46.
The next digit of our result is 2. 
Result so far: 1280.2
Subtracting 154 from 200 leaves us with 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Going ahead to step 7:
77 can be fit into 460 5 times, resulting in a remainder of 75.
Record the quotient 5 as the next digit in the result. 
Result so far: 1280.25
Deduct 385 from 460 and we're left with 75.
Since there are no more digits in the dividend, we add a zero to the remainder making it 750, and continue the process.

Going ahead to step 8:
When dividing 750 by 77, we get 9 with a remainder of 57.
Record the quotient 9 as the next digit in the result. 
Result so far: 1280.259
If we subtract 693 from 750, we get 57.
Since there are no more digits in the dividend, we add a zero to the remainder making it 570, and continue the process.

On to step 9:
77 goes into 570 7 times with a remainder of 31.
Put 7 as the next digit of the answer. 
Result so far: 1280.2597
Subtracting 539 from 570 leaves us with 31.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

Moving on to step 10:
The number 77 fits into 310 4 times, leaving a remainder of 2.
Write down 4 as next digit of the result. 
Result so far: 1280.25974
If we subtract 308 from 310, we get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Going ahead to step 11:
The number 77 fits into 20 0 times, leaving a remainder of 20.
The next digit of our result is 0. 
Result so far: 1280.25974
Subtract 0 from 20 to get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Let's proceed to step 12:
200 divided by 77 is 2 with a remainder of 46.
Record the quotient 2 as the next digit in the result. 
Result so far: 1280.2597402
Deduct 154 from 200 and we're left with 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Moving on to step 13:
460 divided by 77 is 5 with a remainder of 75.
The next digit of our result is 5. 
Result so far: 1280.25974025
Subtract 385 from 460 to get 75.
Since there are no more digits in the dividend, we add a zero to the remainder making it 750, and continue the process.

Our division results in 1280.25974025 with a remaining 7.5e-08.