We look at the division of 19581020 by 519 
We want to figure out the number of times 19581020 can be divided by 519.

Going ahead to step 1:
If we divide 1 by 519, we get 0 and a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Include the next digit (9) from the dividend after 1, then repeat: 19 / 519

Going ahead to step 2:
When dividing 19 by 519, we get 0 with a remainder of 19.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 19, we get 19.
Fetch the next digit (5) from the dividend, attach it to 19 and continue: 195 / 519

Moving on to step 3:
If we divide 195 by 519, we get 0 and a remainder of 195.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 195, we end up with 195.
Include the next digit (8) from the dividend after 195, then repeat: 1958 / 519

Step 4:
1958 divided by 519 is 3 with a remainder of 401.
Put 3 as the next digit of the answer. 
Result so far: 3.0
Deduct 1557 from 1958 and we're left with 401.
Include the next digit (1) from the dividend after 401, then repeat: 4011 / 519

Advancing to step 5:
519 goes into 4011 7 times with a remainder of 378.
Put 7 as the next digit of the answer. 
Result so far: 37.0
Subtract 3633 from 4011 to get 378.
Append the next digit (0) from the dividend to 378 and continue with: 3780 / 519

Let's proceed to step 6:
519 goes into 3780 7 times with a remainder of 147.
The next digit of our result is 7. 
Result so far: 377.0
If we subtract 3633 from 3780, we get 147.
Include the next digit (2) from the dividend after 147, then repeat: 1472 / 519

On to step 7:
519 can be fit into 1472 2 times, resulting in a remainder of 434.
Write down 2 as next digit of the result. 
Result so far: 3772.0
Subtract 1038 from 1472 to get 434.
Take the next digit (0) from the dividend and append it to 434, then repeat: 4340 / 519

Let's proceed to step 8:
519 can be fit into 4340 8 times, resulting in a remainder of 188.
Record the quotient 8 as the next digit in the result. 
Result so far: 37728.0
Subtract 4152 from 4340 to get 188.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1880, and continue the process.

Let's proceed to step 9:
519 can be fit into 1880 3 times, resulting in a remainder of 323.
The next digit of our result is 3. 
Result so far: 37728.3
Subtracting 1557 from 1880 leaves us with 323.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3230, and continue the process.

Step 10:
The number 519 fits into 3230 6 times, leaving a remainder of 116.
Use 6 as the next digit of our solution. 
Result so far: 37728.36
Subtracting 3114 from 3230 leaves us with 116.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1160, and continue the process.

Step 11:
519 can be fit into 1160 2 times, resulting in a remainder of 122.
Put 2 as the next digit of the answer. 
Result so far: 37728.362
Subtracting 1038 from 1160 leaves us with 122.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1220, and continue the process.

Step 12:
When dividing 1220 by 519, we get 2 with a remainder of 182.
The next digit of our result is 2. 
Result so far: 37728.3622
If we subtract 1038 from 1220, we get 182.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1820, and continue the process.

Our division results in 37728.3622 with a remaining 0.00182.