661430 ÷ 66 
Let's see how many times 66 fits into 661430.

Let's proceed to step 1:
6 divided by 66 is 0 with a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 6, we get 6.
Bring next digit (6) of the dividend behind the 6 and repeat the process: 66 / 66

Let's proceed to step 2:
If we divide 66 by 66, we get 1 and a remainder of 0.
The next digit of our result is 1. 
Result so far: 1.0
Subtract 66 from 66 to get 0.
Fetch the next digit (1) from the dividend, attach it to 0 and continue: 1 / 66

On to step 3:
The number 66 fits into 1 0 times, leaving a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 10.0
Subtracting 0 from 1 leaves us with 1.
Append the next digit (4) from the dividend to 1 and continue with: 14 / 66

Advancing to step 4:
14 divided by 66 is 0 with a remainder of 14.
Write down 0 as next digit of the result. 
Result so far: 100.0
Subtracting 0 from 14 leaves us with 14.
Append the next digit (3) from the dividend to 14 and continue with: 143 / 66

Advancing to step 5:
If we divide 143 by 66, we get 2 and a remainder of 11.
Record the quotient 2 as the next digit in the result. 
Result so far: 1002.0
If we subtract 132 from 143, we get 11.
Append the next digit (0) from the dividend to 11 and continue with: 110 / 66

Advancing to step 6:
66 can be fit into 110 1 times, resulting in a remainder of 44.
The next digit of our result is 1. 
Result so far: 10021.0
If we take 66 away from 110, we end up with 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Let's proceed to step 7:
66 goes into 440 6 times with a remainder of 44.
Write down 6 as next digit of the result. 
Result so far: 10021.6
Subtracting 396 from 440 leaves us with 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Advancing to step 8:
66 can be fit into 440 6 times, resulting in a remainder of 44.
The next digit of our result is 6. 
Result so far: 10021.66
Subtract 396 from 440 to get 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

The final result is 10021.66 with a remainder of 0.044.