78589938 divided by 519 
We want to figure out the number of times 78589938 can be divided by 519.

On to step 1:
When dividing 7 by 519, we get 0 with a remainder of 7.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 7, we get 7.
Grab the next digit (8) from the dividend, add it to 7, then carry on: 78 / 519

Moving on to step 2:
If we divide 78 by 519, we get 0 and a remainder of 78.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 78, we get 78.
Include the next digit (5) from the dividend after 78, then repeat: 785 / 519

Moving on to step 3:
785 divided by 519 is 1 with a remainder of 266.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
If we take 519 away from 785, we end up with 266.
Include the next digit (8) from the dividend after 266, then repeat: 2668 / 519

On to step 4:
If we divide 2668 by 519, we get 5 and a remainder of 73.
Record the quotient 5 as the next digit in the result. 
Result so far: 15.0
Subtract 2595 from 2668 to get 73.
Append the next digit (9) from the dividend to 73 and continue with: 739 / 519

Going ahead to step 5:
739 divided by 519 is 1 with a remainder of 220.
Record the quotient 1 as the next digit in the result. 
Result so far: 151.0
If we subtract 519 from 739, we get 220.
Include the next digit (9) from the dividend after 220, then repeat: 2209 / 519

On to step 6:
2209 divided by 519 is 4 with a remainder of 133.
The next digit of our result is 4. 
Result so far: 1514.0
If we take 2076 away from 2209, we end up with 133.
Grab the next digit (3) from the dividend, add it to 133, then carry on: 1333 / 519

Moving on to step 7:
If we divide 1333 by 519, we get 2 and a remainder of 295.
The number 2 becomes the next digit in our result. 
Result so far: 15142.0
If we take 1038 away from 1333, we end up with 295.
Take the next digit (8) from the dividend and append it to 295, then repeat: 2958 / 519

Step 8:
519 can be fit into 2958 5 times, resulting in a remainder of 363.
Put 5 as the next digit of the answer. 
Result so far: 151425.0
Deduct 2595 from 2958 and we're left with 363.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3630, and continue the process.

Step 9:
If we divide 3630 by 519, we get 6 and a remainder of 516.
Use 6 as the next digit of our solution. 
Result so far: 151425.6
If we take 3114 away from 3630, we end up with 516.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5160, and continue the process.

Going ahead to step 10:
519 goes into 5160 9 times with a remainder of 489.
The next digit of our result is 9. 
Result so far: 151425.69
If we subtract 4671 from 5160, we get 489.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4890, and continue the process.

Let's proceed to step 11:
519 can be fit into 4890 9 times, resulting in a remainder of 219.
The number 9 becomes the next digit in our result. 
Result so far: 151425.699
Deduct 4671 from 4890 and we're left with 219.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2190, and continue the process.

After the division, we end up with 151425.699 and a remainder of 0.0219.