258490 ÷ 49 
We're looking to find how many times 49 goes into 258490.

Going ahead to step 1:
2 divided by 49 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.
Include the next digit (5) from the dividend after 2, then repeat: 25 / 49

Step 2:
If we divide 25 by 49, we get 0 and a remainder of 25.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 25, we get 25.
Include the next digit (8) from the dividend after 25, then repeat: 258 / 49

Moving on to step 3:
When dividing 258 by 49, we get 5 with a remainder of 13.
The next digit of our result is 5. 
Result so far: 5.0
Subtracting 245 from 258 leaves us with 13.
Include the next digit (4) from the dividend after 13, then repeat: 134 / 49

On to step 4:
49 can be fit into 134 2 times, resulting in a remainder of 36.
Use 2 as the next digit of our solution. 
Result so far: 52.0
Subtracting 98 from 134 leaves us with 36.
Append the next digit (9) from the dividend to 36 and continue with: 369 / 49

Going ahead to step 5:
49 can be fit into 369 7 times, resulting in a remainder of 26.
The number 7 becomes the next digit in our result. 
Result so far: 527.0
Subtracting 343 from 369 leaves us with 26.
Grab the next digit (0) from the dividend, add it to 26, then carry on: 260 / 49

Moving on to step 6:
The number 49 fits into 260 5 times, leaving a remainder of 15.
Put 5 as the next digit of the answer. 
Result so far: 5275.0
Subtracting 245 from 260 leaves us with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Step 7:
The number 49 fits into 150 3 times, leaving a remainder of 3.
The next digit of our result is 3. 
Result so far: 5275.3
Subtract 147 from 150 to get 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Let's proceed to step 8:
When dividing 30 by 49, we get 0 with a remainder of 30.
The number 0 becomes the next digit in our result. 
Result so far: 5275.3
If we subtract 0 from 30, 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.

Advancing to step 9:
When dividing 300 by 49, we get 6 with a remainder of 6.
The number 6 becomes the next digit in our result. 
Result so far: 5275.306
Subtract 294 from 300 to get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Let's proceed to step 10:
60 divided by 49 is 1 with a remainder of 11.
The next digit of our result is 1. 
Result so far: 5275.3061
Subtracting 49 from 60 leaves us with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Advancing to step 11:
49 can be fit into 110 2 times, resulting in a remainder of 12.
The number 2 becomes the next digit in our result. 
Result so far: 5275.30612
If we subtract 98 from 110, we get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Advancing to step 12:
If we divide 120 by 49, we get 2 and a remainder of 22.
The number 2 becomes the next digit in our result. 
Result so far: 5275.306122
Subtracting 98 from 120 leaves us with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

After the division, we end up with 5275.306122 and a remainder of 2.2e-06.