We look at the division of 75520843 by 509 
Our goal is to divide 75520843 by 509.

Step 1:
509 goes into 7 0 times with a remainder of 7.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 7 leaves us with 7.
Grab the next digit (5) from the dividend, add it to 7, then carry on: 75 / 509

Let's proceed to step 2:
509 can be fit into 75 0 times, resulting in a remainder of 75.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 75, we end up with 75.
Grab the next digit (5) from the dividend, add it to 75, then carry on: 755 / 509

Moving on to step 3:
509 goes into 755 1 times with a remainder of 246.
The next digit of our result is 1. 
Result so far: 1.0
Subtract 509 from 755 to get 246.
Bring next digit (2) of the dividend behind the 246 and repeat the process: 2462 / 509

Going ahead to step 4:
If we divide 2462 by 509, we get 4 and a remainder of 426.
Write down 4 as next digit of the result. 
Result so far: 14.0
If we take 2036 away from 2462, we end up with 426.
Fetch the next digit (0) from the dividend, attach it to 426 and continue: 4260 / 509

Moving on to step 5:
4260 divided by 509 is 8 with a remainder of 188.
Use 8 as the next digit of our solution. 
Result so far: 148.0
If we take 4072 away from 4260, we end up with 188.
Fetch the next digit (8) from the dividend, attach it to 188 and continue: 1888 / 509

Going ahead to step 6:
When dividing 1888 by 509, we get 3 with a remainder of 361.
Write down 3 as next digit of the result. 
Result so far: 1483.0
Subtract 1527 from 1888 to get 361.
Grab the next digit (4) from the dividend, add it to 361, then carry on: 3614 / 509

Let's proceed to step 7:
The number 509 fits into 3614 7 times, leaving a remainder of 51.
Put 7 as the next digit of the answer. 
Result so far: 14837.0
If we take 3563 away from 3614, we end up with 51.
Include the next digit (3) from the dividend after 51, then repeat: 513 / 509

Step 8:
513 divided by 509 is 1 with a remainder of 4.
The number 1 becomes the next digit in our result. 
Result so far: 148371.0
Deduct 509 from 513 and we're left with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

On to step 9:
40 divided by 509 is 0 with a remainder of 40.
The next digit of our result is 0. 
Result so far: 148371.0
Subtract 0 from 40 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 10:
509 can be fit into 400 0 times, resulting in a remainder of 400.
Use 0 as the next digit of our solution. 
Result so far: 148371.0
The remainder is 400 after subtracting 0 from 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

The final result is 148371.0 with a remainder of 0.4.