80790980 ÷ 102 
Our goal is to divide 80790980 by 102.

Step 1:
If we divide 8 by 102, we get 0 and a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Take the next digit (0) from the dividend and append it to 8, then repeat: 80 / 102

Step 2:
80 divided by 102 is 0 with a remainder of 80.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 80 after subtracting 0 from 80.
Bring next digit (7) of the dividend behind the 80 and repeat the process: 807 / 102

Step 3:
If we divide 807 by 102, we get 7 and a remainder of 93.
Record the quotient 7 as the next digit in the result. 
Result so far: 7.0
The remainder is 93 after subtracting 714 from 807.
Append the next digit (9) from the dividend to 93 and continue with: 939 / 102

Advancing to step 4:
102 goes into 939 9 times with a remainder of 21.
The next digit of our result is 9. 
Result so far: 79.0
Subtracting 918 from 939 leaves us with 21.
Bring next digit (0) of the dividend behind the 21 and repeat the process: 210 / 102

Moving on to step 5:
When dividing 210 by 102, we get 2 with a remainder of 6.
The number 2 becomes the next digit in our result. 
Result so far: 792.0
Subtracting 204 from 210 leaves us with 6.
Append the next digit (9) from the dividend to 6 and continue with: 69 / 102

On to step 6:
If we divide 69 by 102, we get 0 and a remainder of 69.
Put 0 as the next digit of the answer. 
Result so far: 7920.0
Subtract 0 from 69 to get 69.
Bring next digit (8) of the dividend behind the 69 and repeat the process: 698 / 102

Let's proceed to step 7:
698 divided by 102 is 6 with a remainder of 86.
Put 6 as the next digit of the answer. 
Result so far: 79206.0
Subtract 612 from 698 to get 86.
Fetch the next digit (0) from the dividend, attach it to 86 and continue: 860 / 102

Step 8:
If we divide 860 by 102, we get 8 and a remainder of 44.
Put 8 as the next digit of the answer. 
Result so far: 792068.0
Subtract 816 from 860 to get 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Let's proceed to step 9:
102 can be fit into 440 4 times, resulting in a remainder of 32.
Record the quotient 4 as the next digit in the result. 
Result so far: 792068.4
Deduct 408 from 440 and we're left with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Advancing to step 10:
When dividing 320 by 102, we get 3 with a remainder of 14.
Write down 3 as next digit of the result. 
Result so far: 792068.43
If we take 306 away from 320, we end up with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

On to step 11:
102 can be fit into 140 1 times, resulting in a remainder of 38.
Use 1 as the next digit of our solution. 
Result so far: 792068.431
Subtract 102 from 140 to get 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Step 12:
380 divided by 102 is 3 with a remainder of 74.
Record the quotient 3 as the next digit in the result. 
Result so far: 792068.4313
Deduct 306 from 380 and we're left with 74.
Since there are no more digits in the dividend, we add a zero to the remainder making it 740, and continue the process.

On to step 13:
When dividing 740 by 102, we get 7 with a remainder of 26.
Use 7 as the next digit of our solution. 
Result so far: 792068.43137
If we take 714 away from 740, we end up with 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Moving on to step 14:
The number 102 fits into 260 2 times, leaving a remainder of 56.
Write down 2 as next digit of the result. 
Result so far: 792068.431372
Subtract 204 from 260 to get 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Moving on to step 15:
102 goes into 560 5 times with a remainder of 50.
Use 5 as the next digit of our solution. 
Result so far: 792068.4313725
Subtract 510 from 560 to get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Moving on to step 16:
102 goes into 500 4 times with a remainder of 92.
Record the quotient 4 as the next digit in the result. 
Result so far: 792068.43137254
If we take 408 away from 500, we end up with 92.
Since there are no more digits in the dividend, we add a zero to the remainder making it 920, and continue the process.

The final outcome is 792068.43137254, with a leftover of 9.2e-08.