80866 ÷ 64 
Let's see how many times 64 fits into 80866.

Moving on to step 1:
The number 64 fits into 8 0 times, leaving a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Bring next digit (0) of the dividend behind the 8 and repeat the process: 80 / 64

Moving on to step 2:
64 can be fit into 80 1 times, resulting in a remainder of 16.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtract 64 from 80 to get 16.
Fetch the next digit (8) from the dividend, attach it to 16 and continue: 168 / 64

Advancing to step 3:
64 goes into 168 2 times with a remainder of 40.
The number 2 becomes the next digit in our result. 
Result so far: 12.0
Subtract 128 from 168 to get 40.
Append the next digit (6) from the dividend to 40 and continue with: 406 / 64

Advancing to step 4:
64 goes into 406 6 times with a remainder of 22.
The next digit of our result is 6. 
Result so far: 126.0
If we subtract 384 from 406, we get 22.
Include the next digit (6) from the dividend after 22, then repeat: 226 / 64

Moving on to step 5:
The number 64 fits into 226 3 times, leaving a remainder of 34.
Put 3 as the next digit of the answer. 
Result so far: 1263.0
Deduct 192 from 226 and we're left with 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Moving on to step 6:
If we divide 340 by 64, we get 5 and a remainder of 20.
Put 5 as the next digit of the answer. 
Result so far: 1263.5
Subtract 320 from 340 to get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

On to step 7:
64 goes into 200 3 times with a remainder of 8.
The number 3 becomes the next digit in our result. 
Result so far: 1263.53
Subtract 192 from 200 to get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Advancing to step 8:
When dividing 80 by 64, we get 1 with a remainder of 16.
Record the quotient 1 as the next digit in the result. 
Result so far: 1263.531
Deduct 64 from 80 and we're left with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

On to step 9:
64 goes into 160 2 times with a remainder of 32.
The number 2 becomes the next digit in our result. 
Result so far: 1263.5312
If we subtract 128 from 160, 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.

Going ahead to step 10:
When dividing 320 by 64, we get 5 with a remainder of 0.
The next digit of our result is 5. 
Result so far: 1263.53125
Subtracting 320 from 320 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Moving on to step 11:
If we divide 0 by 64, we get 0 and a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 1263.53125
Deduct 0 from 0 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

On to step 12:
0 divided by 64 is 0 with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 1263.53125
If we take 0 away from 0, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The quotient of the division is 1263.53125, and the remainder is 0.0.