Let's divide 80128591 by 609
Let's see how many times 609 fits into 80128591.

Advancing to step 1:
When dividing 8 by 609, we get 0 with a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Append the next digit (0) from the dividend to 8 and continue with: 80 / 609

Moving on to step 2:
If we divide 80 by 609, we get 0 and a remainder of 80.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 80 leaves us with 80.
Take the next digit (1) from the dividend and append it to 80, then repeat: 801 / 609

Step 3:
609 can be fit into 801 1 times, resulting in a remainder of 192.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtracting 609 from 801 leaves us with 192.
Fetch the next digit (2) from the dividend, attach it to 192 and continue: 1922 / 609

Moving on to step 4:
1922 divided by 609 is 3 with a remainder of 95.
Use 3 as the next digit of our solution. 
Result so far: 13.0
If we subtract 1827 from 1922, we get 95.
Take the next digit (8) from the dividend and append it to 95, then repeat: 958 / 609

Let's proceed to step 5:
When dividing 958 by 609, we get 1 with a remainder of 349.
Write down 1 as next digit of the result. 
Result so far: 131.0
If we take 609 away from 958, we end up with 349.
Grab the next digit (5) from the dividend, add it to 349, then carry on: 3495 / 609

Going ahead to step 6:
3495 divided by 609 is 5 with a remainder of 450.
Record the quotient 5 as the next digit in the result. 
Result so far: 1315.0
If we take 3045 away from 3495, we end up with 450.
Fetch the next digit (9) from the dividend, attach it to 450 and continue: 4509 / 609

Advancing to step 7:
When dividing 4509 by 609, we get 7 with a remainder of 246.
The number 7 becomes the next digit in our result. 
Result so far: 13157.0
The remainder is 246 after subtracting 4263 from 4509.
Fetch the next digit (1) from the dividend, attach it to 246 and continue: 2461 / 609

Step 8:
2461 divided by 609 is 4 with a remainder of 25.
The next digit of our result is 4. 
Result so far: 131574.0
If we take 2436 away from 2461, we end up with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Let's proceed to step 9:
When dividing 250 by 609, we get 0 with a remainder of 250.
Use 0 as the next digit of our solution. 
Result so far: 131574.0
The remainder is 250 after subtracting 0 from 250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2500, and continue the process.

Step 10:
2500 divided by 609 is 4 with a remainder of 64.
Record the quotient 4 as the next digit in the result. 
Result so far: 131574.04
The remainder is 64 after subtracting 2436 from 2500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

On to step 11:
If we divide 640 by 609, we get 1 and a remainder of 31.
Write down 1 as next digit of the result. 
Result so far: 131574.041
If we take 609 away from 640, we end up 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.

On to step 12:
609 goes into 310 0 times with a remainder of 310.
Record the quotient 0 as the next digit in the result. 
Result so far: 131574.041
If we take 0 away from 310, we end up with 310.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3100, and continue the process.

On to step 13:
609 goes into 3100 5 times with a remainder of 55.
Record the quotient 5 as the next digit in the result. 
Result so far: 131574.04105
Subtract 3045 from 3100 to get 55.
Since there are no more digits in the dividend, we add a zero to the remainder making it 550, and continue the process.

Advancing to step 14:
If we divide 550 by 609, we get 0 and a remainder of 550.
Put 0 as the next digit of the answer. 
Result so far: 131574.04105
Subtracting 0 from 550 leaves us with 550.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5500, and continue the process.

Advancing to step 15:
If we divide 5500 by 609, we get 9 and a remainder of 19.
The number 9 becomes the next digit in our result. 
Result so far: 131574.0410509
Subtract 5481 from 5500 to get 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Moving on to step 16:
190 divided by 609 is 0 with a remainder of 190.
Write down 0 as next digit of the result. 
Result so far: 131574.0410509
If we subtract 0 from 190, we get 190.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1900, and continue the process.

The final result is 131574.0410509 with a remainder of 1.9e-07.