Let's divide 509123 by 66
We want to divide 509123 by 66.

Let's proceed to step 1:
The number 66 fits into 5 0 times, leaving a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 5, we end up with 5.
Include the next digit (0) from the dividend after 5, then repeat: 50 / 66

Moving on to step 2:
66 goes into 50 0 times with a remainder of 50.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 50 leaves us with 50.
Include the next digit (9) from the dividend after 50, then repeat: 509 / 66

Advancing to step 3:
When dividing 509 by 66, we get 7 with a remainder of 47.
Write down 7 as next digit of the result. 
Result so far: 7.0
If we take 462 away from 509, we end up with 47.
Bring next digit (1) of the dividend behind the 47 and repeat the process: 471 / 66

Let's proceed to step 4:
When dividing 471 by 66, we get 7 with a remainder of 9.
The number 7 becomes the next digit in our result. 
Result so far: 77.0
Deduct 462 from 471 and we're left with 9.
Bring next digit (2) of the dividend behind the 9 and repeat the process: 92 / 66

Let's proceed to step 5:
When dividing 92 by 66, we get 1 with a remainder of 26.
The number 1 becomes the next digit in our result. 
Result so far: 771.0
If we subtract 66 from 92, we get 26.
Append the next digit (3) from the dividend to 26 and continue with: 263 / 66

Advancing to step 6:
66 goes into 263 3 times with a remainder of 65.
Put 3 as the next digit of the answer. 
Result so far: 7713.0
If we subtract 198 from 263, we get 65.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

Step 7:
66 goes into 650 9 times with a remainder of 56.
Put 9 as the next digit of the answer. 
Result so far: 7713.9
Deduct 594 from 650 and we're left with 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Let's proceed to step 8:
66 can be fit into 560 8 times, resulting in a remainder of 32.
Use 8 as the next digit of our solution. 
Result so far: 7713.98
Deduct 528 from 560 and we're left with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Let's proceed to step 9:
If we divide 320 by 66, we get 4 and a remainder of 56.
The number 4 becomes the next digit in our result. 
Result so far: 7713.984
Deduct 264 from 320 and we're left with 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Step 10:
If we divide 560 by 66, we get 8 and a remainder of 32.
Use 8 as the next digit of our solution. 
Result so far: 7713.9848
If we subtract 528 from 560, we get 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

On to step 11:
320 divided by 66 is 4 with a remainder of 56.
Write down 4 as next digit of the result. 
Result so far: 7713.98484
If we subtract 264 from 320, we get 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Advancing to step 12:
If we divide 560 by 66, we get 8 and a remainder of 32.
Record the quotient 8 as the next digit in the result. 
Result so far: 7713.984848
The remainder is 32 after subtracting 528 from 560.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Going ahead to step 13:
320 divided by 66 is 4 with a remainder of 56.
Put 4 as the next digit of the answer. 
Result so far: 7713.9848484
If we take 264 away from 320, we end up with 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Step 14:
560 divided by 66 is 8 with a remainder of 32.
Record the quotient 8 as the next digit in the result. 
Result so far: 7713.98484848
If we take 528 away from 560, we end up with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Our division results in 7713.98484848 with a remaining 3.2e-08.