We look at the division of 83390066 by 519 
We want to figure out the number of times 83390066 can be divided by 519.

On to step 1:
8 divided by 519 is 0 with a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Append the next digit (3) from the dividend to 8 and continue with: 83 / 519

Advancing to step 2:
If we divide 83 by 519, we get 0 and a remainder of 83.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 83, we get 83.
Grab the next digit (3) from the dividend, add it to 83, then carry on: 833 / 519

Going ahead to step 3:
The number 519 fits into 833 1 times, leaving a remainder of 314.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtract 519 from 833 to get 314.
Bring next digit (9) of the dividend behind the 314 and repeat the process: 3149 / 519

Advancing to step 4:
The number 519 fits into 3149 6 times, leaving a remainder of 35.
Write down 6 as next digit of the result. 
Result so far: 16.0
If we take 3114 away from 3149, we end up with 35.
Take the next digit (0) from the dividend and append it to 35, then repeat: 350 / 519

Going ahead to step 5:
When dividing 350 by 519, we get 0 with a remainder of 350.
Put 0 as the next digit of the answer. 
Result so far: 160.0
If we take 0 away from 350, we end up with 350.
Fetch the next digit (0) from the dividend, attach it to 350 and continue: 3500 / 519

Moving on to step 6:
519 can be fit into 3500 6 times, resulting in a remainder of 386.
The next digit of our result is 6. 
Result so far: 1606.0
Deduct 3114 from 3500 and we're left with 386.
Bring next digit (6) of the dividend behind the 386 and repeat the process: 3866 / 519

Step 7:
519 can be fit into 3866 7 times, resulting in a remainder of 233.
Use 7 as the next digit of our solution. 
Result so far: 16067.0
Subtracting 3633 from 3866 leaves us with 233.
Take the next digit (6) from the dividend and append it to 233, then repeat: 2336 / 519

Let's proceed to step 8:
If we divide 2336 by 519, we get 4 and a remainder of 260.
Use 4 as the next digit of our solution. 
Result so far: 160674.0
The remainder is 260 after subtracting 2076 from 2336.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2600, and continue the process.

On to step 9:
When dividing 2600 by 519, we get 5 with a remainder of 5.
Write down 5 as next digit of the result. 
Result so far: 160674.5
Deduct 2595 from 2600 and we're left with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

On to step 10:
519 goes into 50 0 times with a remainder of 50.
Record the quotient 0 as the next digit in the result. 
Result so far: 160674.5
Subtracting 0 from 50 leaves us with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Step 11:
If we divide 500 by 519, we get 0 and a remainder of 500.
The number 0 becomes the next digit in our result. 
Result so far: 160674.5
If we take 0 away from 500, we end up with 500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5000, and continue the process.

The quotient of the division is 160674.5, and the remainder is 0.05.