66764366 ÷ 661 
We want to figure out the number of times 66764366 can be divided by 661.

Let's proceed to step 1:
661 goes into 6 0 times with a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 6 after subtracting 0 from 6.
Append the next digit (6) from the dividend to 6 and continue with: 66 / 661

Moving on to step 2:
661 can be fit into 66 0 times, resulting in a remainder of 66.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 66 after subtracting 0 from 66.
Take the next digit (7) from the dividend and append it to 66, then repeat: 667 / 661

On to step 3:
When dividing 667 by 661, we get 1 with a remainder of 6.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
If we take 661 away from 667, we end up with 6.
Take the next digit (6) from the dividend and append it to 6, then repeat: 66 / 661

Advancing to step 4:
The number 661 fits into 66 0 times, leaving a remainder of 66.
Write down 0 as next digit of the result. 
Result so far: 10.0
If we take 0 away from 66, we end up with 66.
Take the next digit (4) from the dividend and append it to 66, then repeat: 664 / 661

On to step 5:
661 can be fit into 664 1 times, resulting in a remainder of 3.
Put 1 as the next digit of the answer. 
Result so far: 101.0
Deduct 661 from 664 and we're left with 3.
Append the next digit (3) from the dividend to 3 and continue with: 33 / 661

Let's proceed to step 6:
If we divide 33 by 661, we get 0 and a remainder of 33.
The next digit of our result is 0. 
Result so far: 1010.0
Subtract 0 from 33 to get 33.
Include the next digit (6) from the dividend after 33, then repeat: 336 / 661

Advancing to step 7:
661 can be fit into 336 0 times, resulting in a remainder of 336.
Use 0 as the next digit of our solution. 
Result so far: 10100.0
The remainder is 336 after subtracting 0 from 336.
Bring next digit (6) of the dividend behind the 336 and repeat the process: 3366 / 661

Moving on to step 8:
661 can be fit into 3366 5 times, resulting in a remainder of 61.
Use 5 as the next digit of our solution. 
Result so far: 101005.0
Deduct 3305 from 3366 and we're left with 61.
Since there are no more digits in the dividend, we add a zero to the remainder making it 610, and continue the process.

Advancing to step 9:
661 goes into 610 0 times with a remainder of 610.
Put 0 as the next digit of the answer. 
Result so far: 101005.0
Subtract 0 from 610 to get 610.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6100, and continue the process.

Advancing to step 10:
If we divide 6100 by 661, we get 9 and a remainder of 151.
Put 9 as the next digit of the answer. 
Result so far: 101005.09
Deduct 5949 from 6100 and we're left with 151.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1510, and continue the process.

Advancing to step 11:
661 goes into 1510 2 times with a remainder of 188.
Put 2 as the next digit of the answer. 
Result so far: 101005.092
The remainder is 188 after subtracting 1322 from 1510.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1880, and continue the process.

Moving on to step 12:
The number 661 fits into 1880 2 times, leaving a remainder of 558.
Record the quotient 2 as the next digit in the result. 
Result so far: 101005.0922
If we subtract 1322 from 1880, we get 558.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5580, and continue the process.

The final result is 101005.0922 with a remainder of 0.00558.