6686534 ÷ 519 
We want to figure out the number of times 6686534 can be divided by 519.

On to step 1:
519 can be fit into 6 0 times, resulting in a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 6 after subtracting 0 from 6.
Take the next digit (6) from the dividend and append it to 6, then repeat: 66 / 519

On to step 2:
519 goes into 66 0 times with a remainder of 66.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 66, we end up with 66.
Take the next digit (8) from the dividend and append it to 66, then repeat: 668 / 519

Let's proceed to step 3:
519 can be fit into 668 1 times, resulting in a remainder of 149.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we subtract 519 from 668, we get 149.
Fetch the next digit (6) from the dividend, attach it to 149 and continue: 1496 / 519

On to step 4:
519 goes into 1496 2 times with a remainder of 458.
The number 2 becomes the next digit in our result. 
Result so far: 12.0
If we take 1038 away from 1496, we end up with 458.
Fetch the next digit (5) from the dividend, attach it to 458 and continue: 4585 / 519

Moving on to step 5:
If we divide 4585 by 519, we get 8 and a remainder of 433.
The number 8 becomes the next digit in our result. 
Result so far: 128.0
If we take 4152 away from 4585, we end up with 433.
Include the next digit (3) from the dividend after 433, then repeat: 4333 / 519

Let's proceed to step 6:
When dividing 4333 by 519, we get 8 with a remainder of 181.
Put 8 as the next digit of the answer. 
Result so far: 1288.0
If we take 4152 away from 4333, we end up with 181.
Take the next digit (4) from the dividend and append it to 181, then repeat: 1814 / 519

Step 7:
If we divide 1814 by 519, we get 3 and a remainder of 257.
Put 3 as the next digit of the answer. 
Result so far: 12883.0
The remainder is 257 after subtracting 1557 from 1814.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2570, and continue the process.

Let's proceed to step 8:
If we divide 2570 by 519, we get 4 and a remainder of 494.
The next digit of our result is 4. 
Result so far: 12883.4
If we take 2076 away from 2570, we end up with 494.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4940, and continue the process.

Going ahead to step 9:
The number 519 fits into 4940 9 times, leaving a remainder of 269.
Use 9 as the next digit of our solution. 
Result so far: 12883.49
If we take 4671 away from 4940, we end up with 269.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2690, and continue the process.

Let's proceed to step 10:
If we divide 2690 by 519, we get 5 and a remainder of 95.
Put 5 as the next digit of the answer. 
Result so far: 12883.495
If we subtract 2595 from 2690, we get 95.
Since there are no more digits in the dividend, we add a zero to the remainder making it 950, and continue the process.

Going ahead to step 11:
The number 519 fits into 950 1 times, leaving a remainder of 431.
Use 1 as the next digit of our solution. 
Result so far: 12883.4951
The remainder is 431 after subtracting 519 from 950.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4310, and continue the process.

Let's proceed to step 12:
When dividing 4310 by 519, we get 8 with a remainder of 158.
Use 8 as the next digit of our solution. 
Result so far: 12883.49518
If we take 4152 away from 4310, we end up 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.

On to step 13:
If we divide 1580 by 519, we get 3 and a remainder of 23.
Record the quotient 3 as the next digit in the result. 
Result so far: 12883.495183
Subtracting 1557 from 1580 leaves us with 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

On to step 14:
The number 519 fits into 230 0 times, leaving a remainder of 230.
Use 0 as the next digit of our solution. 
Result so far: 12883.495183
If we subtract 0 from 230, we get 230.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2300, and continue the process.

Step 15:
2300 divided by 519 is 4 with a remainder of 224.
Use 4 as the next digit of our solution. 
Result so far: 12883.49518304
Subtract 2076 from 2300 to get 224.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2240, and continue the process.

The final outcome is 12883.49518304, with a leftover of 2.24e-07.