68853679 ÷ 129 
Let's see how many times 129 fits into 68853679.

Let's proceed to step 1:
129 goes into 6 0 times with a remainder of 6.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Include the next digit (8) from the dividend after 6, then repeat: 68 / 129

Step 2:
68 divided by 129 is 0 with a remainder of 68.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 68 and we're left with 68.
Include the next digit (8) from the dividend after 68, then repeat: 688 / 129

Moving on to step 3:
When dividing 688 by 129, we get 5 with a remainder of 43.
Record the quotient 5 as the next digit in the result. 
Result so far: 5.0
The remainder is 43 after subtracting 645 from 688.
Take the next digit (5) from the dividend and append it to 43, then repeat: 435 / 129

Advancing to step 4:
129 can be fit into 435 3 times, resulting in a remainder of 48.
Put 3 as the next digit of the answer. 
Result so far: 53.0
Subtract 387 from 435 to get 48.
Grab the next digit (3) from the dividend, add it to 48, then carry on: 483 / 129

Let's proceed to step 5:
483 divided by 129 is 3 with a remainder of 96.
The next digit of our result is 3. 
Result so far: 533.0
Deduct 387 from 483 and we're left with 96.
Bring next digit (6) of the dividend behind the 96 and repeat the process: 966 / 129

Going ahead to step 6:
When dividing 966 by 129, we get 7 with a remainder of 63.
Put 7 as the next digit of the answer. 
Result so far: 5337.0
If we subtract 903 from 966, we get 63.
Append the next digit (7) from the dividend to 63 and continue with: 637 / 129

Step 7:
When dividing 637 by 129, we get 4 with a remainder of 121.
Use 4 as the next digit of our solution. 
Result so far: 53374.0
If we subtract 516 from 637, we get 121.
Grab the next digit (9) from the dividend, add it to 121, then carry on: 1219 / 129

Advancing to step 8:
When dividing 1219 by 129, we get 9 with a remainder of 58.
The number 9 becomes the next digit in our result. 
Result so far: 533749.0
The remainder is 58 after subtracting 1161 from 1219.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

Going ahead to step 9:
580 divided by 129 is 4 with a remainder of 64.
Write down 4 as next digit of the result. 
Result so far: 533749.4
Subtracting 516 from 580 leaves us 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.

Moving on to step 10:
The number 129 fits into 640 4 times, leaving a remainder of 124.
Write down 4 as next digit of the result. 
Result so far: 533749.44
Subtracting 516 from 640 leaves us with 124.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1240, and continue the process.

The final outcome is 533749.44, with a leftover of 0.124.