We look at the division of 64556430 by 660 
Our goal is to divide 64556430 by 660.

Step 1:
6 divided by 660 is 0 with a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Fetch the next digit (4) from the dividend, attach it to 6 and continue: 64 / 660

Step 2:
If we divide 64 by 660, we get 0 and a remainder of 64.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 64, we get 64.
Fetch the next digit (5) from the dividend, attach it to 64 and continue: 645 / 660

Let's proceed to step 3:
660 goes into 645 0 times with a remainder of 645.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 645 to get 645.
Take the next digit (5) from the dividend and append it to 645, then repeat: 6455 / 660

Let's proceed to step 4:
If we divide 6455 by 660, we get 9 and a remainder of 515.
Use 9 as the next digit of our solution. 
Result so far: 9.0
If we take 5940 away from 6455, we end up with 515.
Grab the next digit (6) from the dividend, add it to 515, then carry on: 5156 / 660

Let's proceed to step 5:
5156 divided by 660 is 7 with a remainder of 536.
Use 7 as the next digit of our solution. 
Result so far: 97.0
If we subtract 4620 from 5156, we get 536.
Fetch the next digit (4) from the dividend, attach it to 536 and continue: 5364 / 660

Advancing to step 6:
5364 divided by 660 is 8 with a remainder of 84.
Write down 8 as next digit of the result. 
Result so far: 978.0
If we take 5280 away from 5364, we end up with 84.
Append the next digit (3) from the dividend to 84 and continue with: 843 / 660

Advancing to step 7:
If we divide 843 by 660, we get 1 and a remainder of 183.
The number 1 becomes the next digit in our result. 
Result so far: 9781.0
Subtract 660 from 843 to get 183.
Grab the next digit (0) from the dividend, add it to 183, then carry on: 1830 / 660

Advancing to step 8:
If we divide 1830 by 660, we get 2 and a remainder of 510.
Use 2 as the next digit of our solution. 
Result so far: 97812.0
Subtracting 1320 from 1830 leaves us with 510.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5100, and continue the process.

Moving on to step 9:
660 can be fit into 5100 7 times, resulting in a remainder of 480.
The next digit of our result is 7. 
Result so far: 97812.7
Subtracting 4620 from 5100 leaves us with 480.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4800, and continue the process.

Advancing to step 10:
When dividing 4800 by 660, we get 7 with a remainder of 180.
Record the quotient 7 as the next digit in the result. 
Result so far: 97812.77
The remainder is 180 after subtracting 4620 from 4800.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1800, and continue the process.

The final outcome is 97812.77, with a leftover of 0.18.