We divide 666430 by 731
We want to figure out the number of times 666430 can be divided by 731.

On to step 1:
6 divided by 731 is 0 with a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Bring next digit (6) of the dividend behind the 6 and repeat the process: 66 / 731

Going ahead to step 2:
731 can be fit into 66 0 times, resulting in a remainder of 66.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 66, we get 66.
Bring next digit (6) of the dividend behind the 66 and repeat the process: 666 / 731

Advancing to step 3:
The number 731 fits into 666 0 times, leaving a remainder of 666.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 666 and we're left with 666.
Grab the next digit (4) from the dividend, add it to 666, then carry on: 6664 / 731

On to step 4:
6664 divided by 731 is 9 with a remainder of 85.
Write down 9 as next digit of the result. 
Result so far: 9.0
Subtracting 6579 from 6664 leaves us with 85.
Bring next digit (3) of the dividend behind the 85 and repeat the process: 853 / 731

Going ahead to step 5:
If we divide 853 by 731, we get 1 and a remainder of 122.
The number 1 becomes the next digit in our result. 
Result so far: 91.0
If we take 731 away from 853, we end up with 122.
Append the next digit (0) from the dividend to 122 and continue with: 1220 / 731

On to step 6:
If we divide 1220 by 731, we get 1 and a remainder of 489.
Put 1 as the next digit of the answer. 
Result so far: 911.0
Subtract 731 from 1220 to get 489.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4890, and continue the process.

Advancing to step 7:
731 goes into 4890 6 times with a remainder of 504.
The number 6 becomes the next digit in our result. 
Result so far: 911.6
Subtract 4386 from 4890 to get 504.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5040, and continue the process.

Advancing to step 8:
5040 divided by 731 is 6 with a remainder of 654.
Use 6 as the next digit of our solution. 
Result so far: 911.66
Subtract 4386 from 5040 to get 654.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6540, and continue the process.

After the division, we end up with 911.66 and a remainder of 0.654.