259900 divided by 66 
Our goal is to divide 259900 by 66.

Let's proceed to step 1:
When dividing 2 by 66, we get 0 with a remainder of 2.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 2 after subtracting 0 from 2.
Append the next digit (5) from the dividend to 2 and continue with: 25 / 66

Advancing to step 2:
66 can be fit into 25 0 times, resulting in a remainder of 25.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 25 leaves us with 25.
Fetch the next digit (9) from the dividend, attach it to 25 and continue: 259 / 66

Let's proceed to step 3:
66 can be fit into 259 3 times, resulting in a remainder of 61.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
Subtract 198 from 259 to get 61.
Grab the next digit (9) from the dividend, add it to 61, then carry on: 619 / 66

Step 4:
66 goes into 619 9 times with a remainder of 25.
Record the quotient 9 as the next digit in the result. 
Result so far: 39.0
If we take 594 away from 619, we end up with 25.
Bring next digit (0) of the dividend behind the 25 and repeat the process: 250 / 66

Let's proceed to step 5:
When dividing 250 by 66, we get 3 with a remainder of 52.
The number 3 becomes the next digit in our result. 
Result so far: 393.0
Subtract 198 from 250 to get 52.
Take the next digit (0) from the dividend and append it to 52, then repeat: 520 / 66

Step 6:
66 can be fit into 520 7 times, resulting in a remainder of 58.
Use 7 as the next digit of our solution. 
Result so far: 3937.0
Subtract 462 from 520 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.

Going ahead to step 7:
66 can be fit into 580 8 times, resulting in a remainder of 52.
The next digit of our result is 8. 
Result so far: 3937.8
If we subtract 528 from 580, we get 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Step 8:
When dividing 520 by 66, we get 7 with a remainder of 58.
Use 7 as the next digit of our solution. 
Result so far: 3937.87
Subtract 462 from 520 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.

On to step 9:
The number 66 fits into 580 8 times, leaving a remainder of 52.
The number 8 becomes the next digit in our result. 
Result so far: 3937.878
If we subtract 528 from 580, we get 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Advancing to step 10:
If we divide 520 by 66, we get 7 and a remainder of 58.
Write down 7 as next digit of the result. 
Result so far: 3937.8787
If we subtract 462 from 520, we 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.

Let's proceed to step 11:
When dividing 580 by 66, we get 8 with a remainder of 52.
Put 8 as the next digit of the answer. 
Result so far: 3937.87878
The remainder is 52 after subtracting 528 from 580.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Step 12:
66 goes into 520 7 times with a remainder of 58.
The next digit of our result is 7. 
Result so far: 3937.878787
Deduct 462 from 520 and we're left with 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

Let's proceed to step 13:
The number 66 fits into 580 8 times, leaving a remainder of 52.
Use 8 as the next digit of our solution. 
Result so far: 3937.8787878
Subtracting 528 from 580 leaves us with 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Going ahead to step 14:
66 can be fit into 520 7 times, resulting in a remainder of 58.
Record the quotient 7 as the next digit in the result. 
Result so far: 3937.87878787
If we take 462 away from 520, we end up with 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

Our division results in 3937.87878787 with a remaining 5.8e-08.