51519 ÷ 68 
We're looking to find how many times 68 goes into 51519.

Moving on to step 1:
The number 68 fits into 5 0 times, leaving a remainder of 5.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 5 and we're left with 5.
Take the next digit (1) from the dividend and append it to 5, then repeat: 51 / 68

Advancing to step 2:
If we divide 51 by 68, we get 0 and a remainder of 51.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 51 and we're left with 51.
Grab the next digit (5) from the dividend, add it to 51, then carry on: 515 / 68

Going ahead to step 3:
The number 68 fits into 515 7 times, leaving a remainder of 39.
Write down 7 as next digit of the result. 
Result so far: 7.0
The remainder is 39 after subtracting 476 from 515.
Fetch the next digit (1) from the dividend, attach it to 39 and continue: 391 / 68

Let's proceed to step 4:
The number 68 fits into 391 5 times, leaving a remainder of 51.
The next digit of our result is 5. 
Result so far: 75.0
If we subtract 340 from 391, we get 51.
Bring next digit (9) of the dividend behind the 51 and repeat the process: 519 / 68

Going ahead to step 5:
68 can be fit into 519 7 times, resulting in a remainder of 43.
Use 7 as the next digit of our solution. 
Result so far: 757.0
Subtract 476 from 519 to get 43.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

Advancing to step 6:
430 divided by 68 is 6 with a remainder of 22.
Use 6 as the next digit of our solution. 
Result so far: 757.6
Deduct 408 from 430 and we're left with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Advancing to step 7:
The number 68 fits into 220 3 times, leaving a remainder of 16.
Put 3 as the next digit of the answer. 
Result so far: 757.63
If we subtract 204 from 220, we get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Going ahead to step 8:
The number 68 fits into 160 2 times, leaving a remainder of 24.
The next digit of our result is 2. 
Result so far: 757.632
Subtracting 136 from 160 leaves us with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Moving on to step 9:
If we divide 240 by 68, we get 3 and a remainder of 36.
The next digit of our result is 3. 
Result so far: 757.6323
Deduct 204 from 240 and we're left with 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Moving on to step 10:
The number 68 fits into 360 5 times, leaving a remainder of 20.
Put 5 as the next digit of the answer. 
Result so far: 757.63235
Subtract 340 from 360 to get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Advancing to step 11:
When dividing 200 by 68, we get 2 with a remainder of 64.
The next digit of our result is 2. 
Result so far: 757.632352
Deduct 136 from 200 and we're left with 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Advancing to step 12:
The number 68 fits into 640 9 times, leaving a remainder of 28.
The number 9 becomes the next digit in our result. 
Result so far: 757.6323529
Deduct 612 from 640 and we're left with 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Let's proceed to step 13:
68 can be fit into 280 4 times, resulting in a remainder of 8.
Use 4 as the next digit of our solution. 
Result so far: 757.63235294
If we subtract 272 from 280, we get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

The final result is 757.63235294 with a remainder of 8e-09.