68439103 ÷ 512 
Let's see how many times 512 fits into 68439103.

Going ahead to step 1:
When dividing 6 by 512, we get 0 with a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Include the next digit (8) from the dividend after 6, then repeat: 68 / 512

Let's proceed to step 2:
The number 512 fits into 68 0 times, leaving a remainder of 68.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 68 to get 68.
Grab the next digit (4) from the dividend, add it to 68, then carry on: 684 / 512

Moving on to step 3:
If we divide 684 by 512, we get 1 and a remainder of 172.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
The remainder is 172 after subtracting 512 from 684.
Take the next digit (3) from the dividend and append it to 172, then repeat: 1723 / 512

Moving on to step 4:
512 goes into 1723 3 times with a remainder of 187.
The next digit of our result is 3. 
Result so far: 13.0
If we take 1536 away from 1723, we end up with 187.
Grab the next digit (9) from the dividend, add it to 187, then carry on: 1879 / 512

Going ahead to step 5:
When dividing 1879 by 512, we get 3 with a remainder of 343.
Use 3 as the next digit of our solution. 
Result so far: 133.0
If we take 1536 away from 1879, we end up with 343.
Append the next digit (1) from the dividend to 343 and continue with: 3431 / 512

Advancing to step 6:
When dividing 3431 by 512, we get 6 with a remainder of 359.
The next digit of our result is 6. 
Result so far: 1336.0
The remainder is 359 after subtracting 3072 from 3431.
Include the next digit (0) from the dividend after 359, then repeat: 3590 / 512

Step 7:
512 goes into 3590 7 times with a remainder of 6.
Record the quotient 7 as the next digit in the result. 
Result so far: 13367.0
If we subtract 3584 from 3590, we get 6.
Grab the next digit (3) from the dividend, add it to 6, then carry on: 63 / 512

Advancing to step 8:
When dividing 63 by 512, we get 0 with a remainder of 63.
The next digit of our result is 0. 
Result so far: 133670.0
If we subtract 0 from 63, we get 63.
Since there are no more digits in the dividend, we add a zero to the remainder making it 630, and continue the process.

Going ahead to step 9:
630 divided by 512 is 1 with a remainder of 118.
Record the quotient 1 as the next digit in the result. 
Result so far: 133670.1
If we take 512 away from 630, we end up with 118.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1180, and continue the process.

Step 10:
If we divide 1180 by 512, we get 2 and a remainder of 156.
The next digit of our result is 2. 
Result so far: 133670.12
If we subtract 1024 from 1180, we get 156.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1560, and continue the process.

Going ahead to step 11:
If we divide 1560 by 512, we get 3 and a remainder of 24.
Put 3 as the next digit of the answer. 
Result so far: 133670.123
If we subtract 1536 from 1560, we get 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 12:
512 goes into 240 0 times with a remainder of 240.
Use 0 as the next digit of our solution. 
Result so far: 133670.123
If we take 0 away from 240, we end up with 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2400, and continue the process.

Moving on to step 13:
512 can be fit into 2400 4 times, resulting in a remainder of 352.
Record the quotient 4 as the next digit in the result. 
Result so far: 133670.12304
Deduct 2048 from 2400 and we're left with 352.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3520, and continue the process.

Advancing to step 14:
If we divide 3520 by 512, we get 6 and a remainder of 448.
The number 6 becomes the next digit in our result. 
Result so far: 133670.123046
If we subtract 3072 from 3520, we get 448.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4480, and continue the process.

Moving on to step 15:
4480 divided by 512 is 8 with a remainder of 384.
Use 8 as the next digit of our solution. 
Result so far: 133670.1230468
Deduct 4096 from 4480 and we're left with 384.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3840, and continue the process.

Let's proceed to step 16:
3840 divided by 512 is 7 with a remainder of 256.
Record the quotient 7 as the next digit in the result. 
Result so far: 133670.12304687
Subtracting 3584 from 3840 leaves us with 256.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2560, and continue the process.

In conclusion, the division gives 133670.12304687 with a balance of 2.56e-07.