80285089 divided by 129 
Our goal is to divide 80285089 by 129.

Let's proceed to step 1:
129 can be fit into 8 0 times, resulting in a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Include the next digit (0) from the dividend after 8, then repeat: 80 / 129

Moving on to step 2:
129 goes into 80 0 times with a remainder of 80.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 80 and we're left with 80.
Grab the next digit (2) from the dividend, add it to 80, then carry on: 802 / 129

Let's proceed to step 3:
802 divided by 129 is 6 with a remainder of 28.
The number 6 becomes the next digit in our result. 
Result so far: 6.0
If we subtract 774 from 802, we get 28.
Fetch the next digit (8) from the dividend, attach it to 28 and continue: 288 / 129

Advancing to step 4:
If we divide 288 by 129, we get 2 and a remainder of 30.
Put 2 as the next digit of the answer. 
Result so far: 62.0
Deduct 258 from 288 and we're left with 30.
Append the next digit (5) from the dividend to 30 and continue with: 305 / 129

Advancing to step 5:
305 divided by 129 is 2 with a remainder of 47.
Use 2 as the next digit of our solution. 
Result so far: 622.0
If we take 258 away from 305, we end up with 47.
Include the next digit (0) from the dividend after 47, then repeat: 470 / 129

Moving on to step 6:
129 goes into 470 3 times with a remainder of 83.
The number 3 becomes the next digit in our result. 
Result so far: 6223.0
If we take 387 away from 470, we end up with 83.
Append the next digit (8) from the dividend to 83 and continue with: 838 / 129

Moving on to step 7:
129 can be fit into 838 6 times, resulting in a remainder of 64.
The next digit of our result is 6. 
Result so far: 62236.0
If we take 774 away from 838, we end up with 64.
Bring next digit (9) of the dividend behind the 64 and repeat the process: 649 / 129

On to step 8:
129 goes into 649 5 times with a remainder of 4.
Put 5 as the next digit of the answer. 
Result so far: 622365.0
The remainder is 4 after subtracting 645 from 649.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Let's proceed to step 9:
129 can be fit into 40 0 times, resulting in a remainder of 40.
Record the quotient 0 as the next digit in the result. 
Result so far: 622365.0
Deduct 0 from 40 and we're left with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Let's proceed to step 10:
129 goes into 400 3 times with a remainder of 13.
The number 3 becomes the next digit in our result. 
Result so far: 622365.03
Subtract 387 from 400 to get 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Let's proceed to step 11:
129 can be fit into 130 1 times, resulting in a remainder of 1.
Put 1 as the next digit of the answer. 
Result so far: 622365.031
Subtract 129 from 130 to get 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

On to step 12:
10 divided by 129 is 0 with a remainder of 10.
Put 0 as the next digit of the answer. 
Result so far: 622365.031
Deduct 0 from 10 and we're left with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Let's proceed to step 13:
If we divide 100 by 129, we get 0 and a remainder of 100.
Use 0 as the next digit of our solution. 
Result so far: 622365.031
Subtract 0 from 100 to get 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

Our division results in 622365.031 with a remaining 0.0001.