Let's divide 71531209 by 180
Our goal is to divide 71531209 by 180.

On to step 1:
180 can be fit into 7 0 times, resulting in a remainder of 7.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 7 and we're left with 7.
Bring next digit (1) of the dividend behind the 7 and repeat the process: 71 / 180

Going ahead to step 2:
180 can be fit into 71 0 times, resulting in a remainder of 71.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 71 and we're left with 71.
Fetch the next digit (5) from the dividend, attach it to 71 and continue: 715 / 180

Advancing to step 3:
The number 180 fits into 715 3 times, leaving a remainder of 175.
Write down 3 as next digit of the result. 
Result so far: 3.0
If we subtract 540 from 715, we get 175.
Fetch the next digit (3) from the dividend, attach it to 175 and continue: 1753 / 180

Advancing to step 4:
180 goes into 1753 9 times with a remainder of 133.
Record the quotient 9 as the next digit in the result. 
Result so far: 39.0
Subtract 1620 from 1753 to get 133.
Fetch the next digit (1) from the dividend, attach it to 133 and continue: 1331 / 180

On to step 5:
1331 divided by 180 is 7 with a remainder of 71.
The number 7 becomes the next digit in our result. 
Result so far: 397.0
Deduct 1260 from 1331 and we're left with 71.
Include the next digit (2) from the dividend after 71, then repeat: 712 / 180

Let's proceed to step 6:
180 goes into 712 3 times with a remainder of 172.
Use 3 as the next digit of our solution. 
Result so far: 3973.0
Subtracting 540 from 712 leaves us with 172.
Bring next digit (0) of the dividend behind the 172 and repeat the process: 1720 / 180

On to step 7:
The number 180 fits into 1720 9 times, leaving a remainder of 100.
The next digit of our result is 9. 
Result so far: 39739.0
Deduct 1620 from 1720 and we're left with 100.
Grab the next digit (9) from the dividend, add it to 100, then carry on: 1009 / 180

Going ahead to step 8:
When dividing 1009 by 180, we get 5 with a remainder of 109.
Put 5 as the next digit of the answer. 
Result so far: 397395.0
Deduct 900 from 1009 and we're left with 109.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1090, and continue the process.

Let's proceed to step 9:
If we divide 1090 by 180, we get 6 and a remainder of 10.
Record the quotient 6 as the next digit in the result. 
Result so far: 397395.6
If we subtract 1080 from 1090, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

On to step 10:
100 divided by 180 is 0 with a remainder of 100.
Write down 0 as next digit of the result. 
Result so far: 397395.6
If we subtract 0 from 100, we 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.

Advancing to step 11:
The number 180 fits into 1000 5 times, leaving a remainder of 100.
The next digit of our result is 5. 
Result so far: 397395.605
Deduct 900 from 1000 and we're left with 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

Going ahead to step 12:
1000 divided by 180 is 5 with a remainder of 100.
Use 5 as the next digit of our solution. 
Result so far: 397395.6055
The remainder is 100 after subtracting 900 from 1000.
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 397395.6055 with a remaining 0.001.