We divide 415990 by 66
We want to divide 415990 by 66.

On to step 1:
66 goes into 4 0 times with a remainder of 4.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 4 to get 4.
Include the next digit (1) from the dividend after 4, then repeat: 41 / 66

Let's proceed to step 2:
The number 66 fits into 41 0 times, leaving a remainder of 41.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 41 and we're left with 41.
Bring next digit (5) of the dividend behind the 41 and repeat the process: 415 / 66

Step 3:
The number 66 fits into 415 6 times, leaving a remainder of 19.
Put 6 as the next digit of the answer. 
Result so far: 6.0
Subtract 396 from 415 to get 19.
Bring next digit (9) of the dividend behind the 19 and repeat the process: 199 / 66

Advancing to step 4:
The number 66 fits into 199 3 times, leaving a remainder of 1.
The number 3 becomes the next digit in our result. 
Result so far: 63.0
Deduct 198 from 199 and we're left with 1.
Grab the next digit (9) from the dividend, add it to 1, then carry on: 19 / 66

Going ahead to step 5:
If we divide 19 by 66, we get 0 and a remainder of 19.
Use 0 as the next digit of our solution. 
Result so far: 630.0
Subtract 0 from 19 to get 19.
Include the next digit (0) from the dividend after 19, then repeat: 190 / 66

Step 6:
If we divide 190 by 66, we get 2 and a remainder of 58.
Record the quotient 2 as the next digit in the result. 
Result so far: 6302.0
If we subtract 132 from 190, 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.

Going ahead to step 7:
If we divide 580 by 66, we get 8 and a remainder of 52.
The number 8 becomes the next digit in our result. 
Result so far: 6302.8
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.

On to step 8:
The number 66 fits into 520 7 times, leaving a remainder of 58.
The number 7 becomes the next digit in our result. 
Result so far: 6302.87
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.

Let's proceed to step 9:
If we divide 580 by 66, we get 8 and a remainder of 52.
Put 8 as the next digit of the answer. 
Result so far: 6302.878
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.

Moving on to step 10:
520 divided by 66 is 7 with a remainder of 58.
The next digit of our result is 7. 
Result so far: 6302.8787
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.

Going ahead to step 11:
580 divided by 66 is 8 with a remainder of 52.
Put 8 as the next digit of the answer. 
Result so far: 6302.87878
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.

Going ahead to step 12:
66 can be fit into 520 7 times, resulting in a remainder of 58.
The next digit of our result is 7. 
Result so far: 6302.878787
The remainder is 58 after subtracting 462 from 520.
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 13:
66 goes into 580 8 times with a remainder of 52.
The number 8 becomes the next digit in our result. 
Result so far: 6302.8787878
Deduct 528 from 580 and we're left 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.
Put 7 as the next digit of the answer. 
Result so far: 6302.87878787
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.

The final outcome is 6302.87878787, with a leftover of 5.8e-08.