We look at the division of 257904 by 70 
We're looking to find how many times 70 goes into 257904.

Going ahead to step 1:
The number 70 fits into 2 0 times, leaving a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 2, we get 2.
Fetch the next digit (5) from the dividend, attach it to 2 and continue: 25 / 70

Step 2:
The number 70 fits into 25 0 times, leaving a remainder of 25.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 25 after subtracting 0 from 25.
Grab the next digit (7) from the dividend, add it to 25, then carry on: 257 / 70

Let's proceed to step 3:
70 can be fit into 257 3 times, resulting in a remainder of 47.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
Subtract 210 from 257 to get 47.
Append the next digit (9) from the dividend to 47 and continue with: 479 / 70

On to step 4:
If we divide 479 by 70, we get 6 and a remainder of 59.
The next digit of our result is 6. 
Result so far: 36.0
Subtract 420 from 479 to get 59.
Include the next digit (0) from the dividend after 59, then repeat: 590 / 70

Moving on to step 5:
70 can be fit into 590 8 times, resulting in a remainder of 30.
Record the quotient 8 as the next digit in the result. 
Result so far: 368.0
If we subtract 560 from 590, we get 30.
Append the next digit (4) from the dividend to 30 and continue with: 304 / 70

On to step 6:
When dividing 304 by 70, we get 4 with a remainder of 24.
Record the quotient 4 as the next digit in the result. 
Result so far: 3684.0
Deduct 280 from 304 and we're left with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Going ahead to step 7:
When dividing 240 by 70, we get 3 with a remainder of 30.
The number 3 becomes the next digit in our result. 
Result so far: 3684.3
If we subtract 210 from 240, we get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Let's proceed to step 8:
300 divided by 70 is 4 with a remainder of 20.
Put 4 as the next digit of the answer. 
Result so far: 3684.34
If we subtract 280 from 300, we get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Let's proceed to step 9:
If we divide 200 by 70, we get 2 and a remainder of 60.
Record the quotient 2 as the next digit in the result. 
Result so far: 3684.342
Deduct 140 from 200 and we're left 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.

Going ahead to step 10:
70 goes into 600 8 times with a remainder of 40.
Use 8 as the next digit of our solution. 
Result so far: 3684.3428
If we subtract 560 from 600, we get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Going ahead to step 11:
When dividing 400 by 70, we get 5 with a remainder of 50.
Record the quotient 5 as the next digit in the result. 
Result so far: 3684.34285
Subtracting 350 from 400 leaves us with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Going ahead to step 12:
If we divide 500 by 70, we get 7 and a remainder of 10.
Write down 7 as next digit of the result. 
Result so far: 3684.342857
Deduct 490 from 500 and we're left with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

On to step 13:
100 divided by 70 is 1 with a remainder of 30.
Use 1 as the next digit of our solution. 
Result so far: 3684.3428571
The remainder is 30 after subtracting 70 from 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Moving on to step 14:
70 can be fit into 300 4 times, resulting in a remainder of 20.
Use 4 as the next digit of our solution. 
Result so far: 3684.34285714
Subtracting 280 from 300 leaves us with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

The final result is 3684.34285714 with a remainder of 2e-08.