We divide 258491 by 66
We're looking to find how many times 66 goes into 258491.

Moving on to step 1:
If we divide 2 by 66, we get 0 and a remainder of 2.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 2 leaves us with 2.
Include the next digit (5) from the dividend after 2, then repeat: 25 / 66

Advancing to step 2:
66 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
If we subtract 0 from 25, we get 25.
Fetch the next digit (8) from the dividend, attach it to 25 and continue: 258 / 66

Step 3:
The number 66 fits into 258 3 times, leaving a remainder of 60.
Write down 3 as next digit of the result. 
Result so far: 3.0
Deduct 198 from 258 and we're left with 60.
Append the next digit (4) from the dividend to 60 and continue with: 604 / 66

Advancing to step 4:
604 divided by 66 is 9 with a remainder of 10.
The number 9 becomes the next digit in our result. 
Result so far: 39.0
Deduct 594 from 604 and we're left with 10.
Include the next digit (9) from the dividend after 10, then repeat: 109 / 66

Moving on to step 5:
The number 66 fits into 109 1 times, leaving a remainder of 43.
The number 1 becomes the next digit in our result. 
Result so far: 391.0
Deduct 66 from 109 and we're left with 43.
Bring next digit (1) of the dividend behind the 43 and repeat the process: 431 / 66

Let's proceed to step 6:
431 divided by 66 is 6 with a remainder of 35.
The next digit of our result is 6. 
Result so far: 3916.0
If we subtract 396 from 431, we get 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Step 7:
The number 66 fits into 350 5 times, leaving a remainder of 20.
Record the quotient 5 as the next digit in the result. 
Result so far: 3916.5
Subtract 330 from 350 to 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.

Advancing to step 8:
The number 66 fits into 200 3 times, leaving a remainder of 2.
Use 3 as the next digit of our solution. 
Result so far: 3916.53
The remainder is 2 after subtracting 198 from 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Going ahead to step 9:
When dividing 20 by 66, we get 0 with a remainder of 20.
Put 0 as the next digit of the answer. 
Result so far: 3916.53
If we take 0 away from 20, we end up 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.

Step 10:
The number 66 fits into 200 3 times, leaving a remainder of 2.
Write down 3 as next digit of the result. 
Result so far: 3916.5303
If we subtract 198 from 200, we get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

On to step 11:
66 can be fit into 20 0 times, resulting in a remainder of 20.
The next digit of our result is 0. 
Result so far: 3916.5303
The remainder is 20 after subtracting 0 from 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Advancing to step 12:
66 can be fit into 200 3 times, resulting in a remainder of 2.
Put 3 as the next digit of the answer. 
Result so far: 3916.530303
If we take 198 away from 200, we end up with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

On to step 13:
66 goes into 20 0 times with a remainder of 20.
Put 0 as the next digit of the answer. 
Result so far: 3916.530303
Subtract 0 from 20 to 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 14:
The number 66 fits into 200 3 times, leaving a remainder of 2.
Put 3 as the next digit of the answer. 
Result so far: 3916.53030303
Subtracting 198 from 200 leaves us with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

The final result is 3916.53030303 with a remainder of 2e-09.