We look at the division of 23258 by 78 
We want to figure out the number of times 23258 can be divided by 78.

On to step 1:
2 divided by 78 is 0 with a remainder of 2.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 2, we end up with 2.
Append the next digit (3) from the dividend to 2 and continue with: 23 / 78

On to step 2:
23 divided by 78 is 0 with a remainder of 23.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 23, we get 23.
Include the next digit (2) from the dividend after 23, then repeat: 232 / 78

Advancing to step 3:
232 divided by 78 is 2 with a remainder of 76.
Put 2 as the next digit of the answer. 
Result so far: 2.0
Subtract 156 from 232 to get 76.
Append the next digit (5) from the dividend to 76 and continue with: 765 / 78

Step 4:
The number 78 fits into 765 9 times, leaving a remainder of 63.
Use 9 as the next digit of our solution. 
Result so far: 29.0
If we take 702 away from 765, we end up with 63.
Bring next digit (8) of the dividend behind the 63 and repeat the process: 638 / 78

Moving on to step 5:
638 divided by 78 is 8 with a remainder of 14.
Use 8 as the next digit of our solution. 
Result so far: 298.0
Deduct 624 from 638 and we're left with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Moving on to step 6:
78 can be fit into 140 1 times, resulting in a remainder of 62.
Put 1 as the next digit of the answer. 
Result so far: 298.1
Deduct 78 from 140 and we're left with 62.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

Advancing to step 7:
78 goes into 620 7 times with a remainder of 74.
Use 7 as the next digit of our solution. 
Result so far: 298.17
Deduct 546 from 620 and we're left with 74.
Since there are no more digits in the dividend, we add a zero to the remainder making it 740, and continue the process.

Moving on to step 8:
The number 78 fits into 740 9 times, leaving a remainder of 38.
The number 9 becomes the next digit in our result. 
Result so far: 298.179
The remainder is 38 after subtracting 702 from 740.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

On to step 9:
78 goes into 380 4 times with a remainder of 68.
The next digit of our result is 4. 
Result so far: 298.1794
The remainder is 68 after subtracting 312 from 380.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

On to step 10:
78 can be fit into 680 8 times, resulting in a remainder of 56.
The next digit of our result is 8. 
Result so far: 298.17948
Deduct 624 from 680 and we're left with 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Advancing to step 11:
When dividing 560 by 78, we get 7 with a remainder of 14.
Write down 7 as next digit of the result. 
Result so far: 298.179487
If we take 546 away from 560, we end up with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Advancing to step 12:
If we divide 140 by 78, we get 1 and a remainder of 62.
The number 1 becomes the next digit in our result. 
Result so far: 298.1794871
The remainder is 62 after subtracting 78 from 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

Step 13:
620 divided by 78 is 7 with a remainder of 74.
The next digit of our result is 7. 
Result so far: 298.17948717
If we subtract 546 from 620, we get 74.
Since there are no more digits in the dividend, we add a zero to the remainder making it 740, and continue the process.

After the division, we end up with 298.17948717 and a remainder of 7.4e-08.