Let's divide 90401219 by 509
Our goal is to divide 90401219 by 509.

Advancing to step 1:
509 goes into 9 0 times with a remainder of 9.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 9, we end up with 9.
Fetch the next digit (0) from the dividend, attach it to 9 and continue: 90 / 509

Advancing to step 2:
90 divided by 509 is 0 with a remainder of 90.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 90, we end up with 90.
Append the next digit (4) from the dividend to 90 and continue with: 904 / 509

Moving on to step 3:
When dividing 904 by 509, we get 1 with a remainder of 395.
Write down 1 as next digit of the result. 
Result so far: 1.0
Subtract 509 from 904 to get 395.
Append the next digit (0) from the dividend to 395 and continue with: 3950 / 509

Moving on to step 4:
3950 divided by 509 is 7 with a remainder of 387.
Record the quotient 7 as the next digit in the result. 
Result so far: 17.0
Deduct 3563 from 3950 and we're left with 387.
Bring next digit (1) of the dividend behind the 387 and repeat the process: 3871 / 509

Let's proceed to step 5:
3871 divided by 509 is 7 with a remainder of 308.
Record the quotient 7 as the next digit in the result. 
Result so far: 177.0
Subtract 3563 from 3871 to get 308.
Grab the next digit (2) from the dividend, add it to 308, then carry on: 3082 / 509

Going ahead to step 6:
The number 509 fits into 3082 6 times, leaving a remainder of 28.
Record the quotient 6 as the next digit in the result. 
Result so far: 1776.0
If we take 3054 away from 3082, we end up with 28.
Grab the next digit (1) from the dividend, add it to 28, then carry on: 281 / 509

Advancing to step 7:
509 can be fit into 281 0 times, resulting in a remainder of 281.
Use 0 as the next digit of our solution. 
Result so far: 17760.0
If we take 0 away from 281, we end up with 281.
Take the next digit (9) from the dividend and append it to 281, then repeat: 2819 / 509

Step 8:
When dividing 2819 by 509, we get 5 with a remainder of 274.
Use 5 as the next digit of our solution. 
Result so far: 177605.0
The remainder is 274 after subtracting 2545 from 2819.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2740, and continue the process.

Moving on to step 9:
509 can be fit into 2740 5 times, resulting in a remainder of 195.
The number 5 becomes the next digit in our result. 
Result so far: 177605.5
Deduct 2545 from 2740 and we're left with 195.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1950, and continue the process.

Let's proceed to step 10:
If we divide 1950 by 509, we get 3 and a remainder of 423.
Put 3 as the next digit of the answer. 
Result so far: 177605.53
If we take 1527 away from 1950, we end up with 423.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4230, and continue the process.

Going ahead to step 11:
509 goes into 4230 8 times with a remainder of 158.
Put 8 as the next digit of the answer. 
Result so far: 177605.538
Deduct 4072 from 4230 and we're left with 158.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1580, and continue the process.

Going ahead to step 12:
509 goes into 1580 3 times with a remainder of 53.
The number 3 becomes the next digit in our result. 
Result so far: 177605.5383
Subtracting 1527 from 1580 leaves us with 53.
Since there are no more digits in the dividend, we add a zero to the remainder making it 530, and continue the process.

Let's proceed to step 13:
When dividing 530 by 509, we get 1 with a remainder of 21.
Record the quotient 1 as the next digit in the result. 
Result so far: 177605.53831
If we subtract 509 from 530, we get 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

On to step 14:
If we divide 210 by 509, we get 0 and a remainder of 210.
Write down 0 as next digit of the result. 
Result so far: 177605.53831
If we take 0 away from 210, we end up with 210.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2100, and continue the process.

Let's proceed to step 15:
509 can be fit into 2100 4 times, resulting in a remainder of 64.
Record the quotient 4 as the next digit in the result. 
Result so far: 177605.5383104
Subtract 2036 from 2100 to get 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Step 16:
When dividing 640 by 509, we get 1 with a remainder of 131.
Record the quotient 1 as the next digit in the result. 
Result so far: 177605.53831041
Subtract 509 from 640 to get 131.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1310, and continue the process.

The quotient of the division is 177605.53831041, and the remainder is 1.31e-07.