We look at the division of 75455431 by 180 
Our goal is to divide 75455431 by 180.

Step 1:
The number 180 fits into 7 0 times, leaving a remainder of 7.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 7 after subtracting 0 from 7.
Grab the next digit (5) from the dividend, add it to 7, then carry on: 75 / 180

On to step 2:
75 divided by 180 is 0 with a remainder of 75.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 75 to get 75.
Grab the next digit (4) from the dividend, add it to 75, then carry on: 754 / 180

Moving on to step 3:
When dividing 754 by 180, we get 4 with a remainder of 34.
Record the quotient 4 as the next digit in the result. 
Result so far: 4.0
If we subtract 720 from 754, we get 34.
Grab the next digit (5) from the dividend, add it to 34, then carry on: 345 / 180

Step 4:
The number 180 fits into 345 1 times, leaving a remainder of 165.
Write down 1 as next digit of the result. 
Result so far: 41.0
If we take 180 away from 345, we end up with 165.
Append the next digit (5) from the dividend to 165 and continue with: 1655 / 180

On to step 5:
180 can be fit into 1655 9 times, resulting in a remainder of 35.
The number 9 becomes the next digit in our result. 
Result so far: 419.0
Subtract 1620 from 1655 to get 35.
Fetch the next digit (4) from the dividend, attach it to 35 and continue: 354 / 180

Let's proceed to step 6:
When dividing 354 by 180, we get 1 with a remainder of 174.
Use 1 as the next digit of our solution. 
Result so far: 4191.0
If we take 180 away from 354, we end up with 174.
Bring next digit (3) of the dividend behind the 174 and repeat the process: 1743 / 180

Let's proceed to step 7:
When dividing 1743 by 180, we get 9 with a remainder of 123.
The next digit of our result is 9. 
Result so far: 41919.0
The remainder is 123 after subtracting 1620 from 1743.
Append the next digit (1) from the dividend to 123 and continue with: 1231 / 180

Going ahead to step 8:
The number 180 fits into 1231 6 times, leaving a remainder of 151.
The number 6 becomes the next digit in our result. 
Result so far: 419196.0
The remainder is 151 after subtracting 1080 from 1231.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1510, and continue the process.

Moving on to step 9:
When dividing 1510 by 180, we get 8 with a remainder of 70.
Use 8 as the next digit of our solution. 
Result so far: 419196.8
If we subtract 1440 from 1510, we get 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Advancing to step 10:
The number 180 fits into 700 3 times, leaving a remainder of 160.
Record the quotient 3 as the next digit in the result. 
Result so far: 419196.83
If we subtract 540 from 700, we get 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

Moving on to step 11:
180 can be fit into 1600 8 times, resulting in a remainder of 160.
Put 8 as the next digit of the answer. 
Result so far: 419196.838
If we subtract 1440 from 1600, we get 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

Moving on to step 12:
180 goes into 1600 8 times with a remainder of 160.
Write down 8 as next digit of the result. 
Result so far: 419196.8388
Deduct 1440 from 1600 and we're left with 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

After the division, we end up with 419196.8388 and a remainder of 0.0016.