68820589 ÷ 80 
We want to divide 68820589 by 80.

Advancing to step 1:
The number 80 fits into 6 0 times, leaving a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 6, we get 6.
Take the next digit (8) from the dividend and append it to 6, then repeat: 68 / 80

Let's proceed to step 2:
80 can be fit into 68 0 times, resulting in a remainder of 68.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 68 after subtracting 0 from 68.
Append the next digit (8) from the dividend to 68 and continue with: 688 / 80

Going ahead to step 3:
When dividing 688 by 80, we get 8 with a remainder of 48.
The number 8 becomes the next digit in our result. 
Result so far: 8.0
If we subtract 640 from 688, we get 48.
Include the next digit (2) from the dividend after 48, then repeat: 482 / 80

Let's proceed to step 4:
If we divide 482 by 80, we get 6 and a remainder of 2.
The number 6 becomes the next digit in our result. 
Result so far: 86.0
If we subtract 480 from 482, we get 2.
Append the next digit (0) from the dividend to 2 and continue with: 20 / 80

On to step 5:
When dividing 20 by 80, we get 0 with a remainder of 20.
Write down 0 as next digit of the result. 
Result so far: 860.0
Deduct 0 from 20 and we're left with 20.
Take the next digit (5) from the dividend and append it to 20, then repeat: 205 / 80

Going ahead to step 6:
When dividing 205 by 80, we get 2 with a remainder of 45.
Put 2 as the next digit of the answer. 
Result so far: 8602.0
If we take 160 away from 205, we end up with 45.
Include the next digit (8) from the dividend after 45, then repeat: 458 / 80

Let's proceed to step 7:
80 goes into 458 5 times with a remainder of 58.
Use 5 as the next digit of our solution. 
Result so far: 86025.0
If we subtract 400 from 458, we get 58.
Grab the next digit (9) from the dividend, add it to 58, then carry on: 589 / 80

Moving on to step 8:
80 can be fit into 589 7 times, resulting in a remainder of 29.
Use 7 as the next digit of our solution. 
Result so far: 860257.0
Deduct 560 from 589 and we're left with 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

Going ahead to step 9:
When dividing 290 by 80, we get 3 with a remainder of 50.
Use 3 as the next digit of our solution. 
Result so far: 860257.3
If we take 240 away from 290, we end up with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

On to step 10:
The number 80 fits into 500 6 times, leaving a remainder of 20.
Write down 6 as next digit of the result. 
Result so far: 860257.36
If we subtract 480 from 500, 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.

Advancing to step 11:
When dividing 200 by 80, we get 2 with a remainder of 40.
Write down 2 as next digit of the result. 
Result so far: 860257.362
Subtract 160 from 200 to get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Step 12:
If we divide 400 by 80, we get 5 and a remainder of 0.
The number 5 becomes the next digit in our result. 
Result so far: 860257.3625
If we subtract 400 from 400, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Moving on to step 13:
When dividing 0 by 80, we get 0 with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 860257.3625
If we subtract 0 from 0, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Step 14:
80 goes into 0 0 times with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 860257.3625
If we subtract 0 from 0, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

After the division, we end up with 860257.3625 and a remainder of 0.0.