We're dividing 257470 by 78 
We want to divide 257470 by 78.

Moving on to step 1:
78 can be fit into 2 0 times, resulting in a remainder of 2.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 2 to get 2.
Include the next digit (5) from the dividend after 2, then repeat: 25 / 78

Step 2:
78 can be fit into 25 0 times, resulting in a remainder of 25.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 25 and we're left with 25.
Include the next digit (7) from the dividend after 25, then repeat: 257 / 78

Going ahead to step 3:
When dividing 257 by 78, we get 3 with a remainder of 23.
Put 3 as the next digit of the answer. 
Result so far: 3.0
If we take 234 away from 257, we end up with 23.
Bring next digit (4) of the dividend behind the 23 and repeat the process: 234 / 78

Moving on to step 4:
The number 78 fits into 234 3 times, leaving a remainder of 0.
Put 3 as the next digit of the answer. 
Result so far: 33.0
Subtracting 234 from 234 leaves us with 0.
Fetch the next digit (7) from the dividend, attach it to 0 and continue: 7 / 78

Step 5:
78 can be fit into 7 0 times, resulting in a remainder of 7.
Put 0 as the next digit of the answer. 
Result so far: 330.0
Deduct 0 from 7 and we're left with 7.
Bring next digit (0) of the dividend behind the 7 and repeat the process: 70 / 78

Advancing to step 6:
When dividing 70 by 78, we get 0 with a remainder of 70.
Write down 0 as next digit of the result. 
Result so far: 3300.0
Subtract 0 from 70 to get 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Step 7:
If we divide 700 by 78, we get 8 and a remainder of 76.
Record the quotient 8 as the next digit in the result. 
Result so far: 3300.8
Subtracting 624 from 700 leaves us with 76.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

Moving on to step 8:
78 goes into 760 9 times with a remainder of 58.
Put 9 as the next digit of the answer. 
Result so far: 3300.89
The remainder is 58 after subtracting 702 from 760.
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:
78 can be fit into 580 7 times, resulting in a remainder of 34.
The number 7 becomes the next digit in our result. 
Result so far: 3300.897
The remainder is 34 after subtracting 546 from 580.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Let's proceed to step 10:
340 divided by 78 is 4 with a remainder of 28.
Record the quotient 4 as the next digit in the result. 
Result so far: 3300.8974
Subtracting 312 from 340 leaves us 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 11:
280 divided by 78 is 3 with a remainder of 46.
Use 3 as the next digit of our solution. 
Result so far: 3300.89743
If we subtract 234 from 280, we get 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Let's proceed to step 12:
78 goes into 460 5 times with a remainder of 70.
Put 5 as the next digit of the answer. 
Result so far: 3300.897435
Subtracting 390 from 460 leaves us with 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Going ahead to step 13:
If we divide 700 by 78, we get 8 and a remainder of 76.
Write down 8 as next digit of the result. 
Result so far: 3300.8974358
Deduct 624 from 700 and we're left with 76.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

Let's proceed to step 14:
78 can be fit into 760 9 times, resulting in a remainder of 58.
The number 9 becomes the next digit in our result. 
Result so far: 3300.89743589
Subtract 702 from 760 to get 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

The final outcome is 3300.89743589, with a leftover of 5.8e-08.