68540391 divided by 258 
Our goal is to divide 68540391 by 258.

Let's proceed to step 1:
If we divide 6 by 258, we get 0 and a remainder of 6.
The next digit of our result is 0. 
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 / 258

Going ahead to step 2:
258 can be fit into 68 0 times, resulting in a remainder of 68.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 68 and we're left with 68.
Include the next digit (5) from the dividend after 68, then repeat: 685 / 258

Step 3:
The number 258 fits into 685 2 times, leaving a remainder of 169.
The next digit of our result is 2. 
Result so far: 2.0
Deduct 516 from 685 and we're left with 169.
Grab the next digit (4) from the dividend, add it to 169, then carry on: 1694 / 258

On to step 4:
The number 258 fits into 1694 6 times, leaving a remainder of 146.
Put 6 as the next digit of the answer. 
Result so far: 26.0
Subtracting 1548 from 1694 leaves us with 146.
Grab the next digit (0) from the dividend, add it to 146, then carry on: 1460 / 258

Moving on to step 5:
When dividing 1460 by 258, we get 5 with a remainder of 170.
Use 5 as the next digit of our solution. 
Result so far: 265.0
The remainder is 170 after subtracting 1290 from 1460.
Grab the next digit (3) from the dividend, add it to 170, then carry on: 1703 / 258

Moving on to step 6:
1703 divided by 258 is 6 with a remainder of 155.
Record the quotient 6 as the next digit in the result. 
Result so far: 2656.0
If we take 1548 away from 1703, we end up with 155.
Take the next digit (9) from the dividend and append it to 155, then repeat: 1559 / 258

Step 7:
The number 258 fits into 1559 6 times, leaving a remainder of 11.
The number 6 becomes the next digit in our result. 
Result so far: 26566.0
Subtract 1548 from 1559 to get 11.
Take the next digit (1) from the dividend and append it to 11, then repeat: 111 / 258

Let's proceed to step 8:
The number 258 fits into 111 0 times, leaving a remainder of 111.
The number 0 becomes the next digit in our result. 
Result so far: 265660.0
If we subtract 0 from 111, we get 111.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1110, and continue the process.

Step 9:
1110 divided by 258 is 4 with a remainder of 78.
The next digit of our result is 4. 
Result so far: 265660.4
Deduct 1032 from 1110 and we're left with 78.
Since there are no more digits in the dividend, we add a zero to the remainder making it 780, and continue the process.

Advancing to step 10:
The number 258 fits into 780 3 times, leaving a remainder of 6.
Use 3 as the next digit of our solution. 
Result so far: 265660.43
Deduct 774 from 780 and we're left with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Advancing to step 11:
60 divided by 258 is 0 with a remainder of 60.
Record the quotient 0 as the next digit in the result. 
Result so far: 265660.43
If we take 0 away from 60, we end up with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Step 12:
258 goes into 600 2 times with a remainder of 84.
Put 2 as the next digit of the answer. 
Result so far: 265660.4302
The remainder is 84 after subtracting 516 from 600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 840, and continue the process.

Going ahead to step 13:
If we divide 840 by 258, we get 3 and a remainder of 66.
Put 3 as the next digit of the answer. 
Result so far: 265660.43023
Subtracting 774 from 840 leaves us with 66.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

On to step 14:
The number 258 fits into 660 2 times, leaving a remainder of 144.
Put 2 as the next digit of the answer. 
Result so far: 265660.430232
Subtract 516 from 660 to get 144.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1440, and continue the process.

Going ahead to step 15:
258 can be fit into 1440 5 times, resulting in a remainder of 150.
Write down 5 as next digit of the result. 
Result so far: 265660.4302325
The remainder is 150 after subtracting 1290 from 1440.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1500, and continue the process.

Going ahead to step 16:
258 goes into 1500 5 times with a remainder of 210.
The next digit of our result is 5. 
Result so far: 265660.43023255
If we subtract 1290 from 1500, we get 210.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2100, and continue the process.

In conclusion, the division gives 265660.43023255 with a balance of 2.1e-07.