We're dividing 864893 by 66 
Let's see how many times 66 fits into 864893.

Advancing to step 1:
8 divided by 66 is 0 with a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Bring next digit (6) of the dividend behind the 8 and repeat the process: 86 / 66

Step 2:
If we divide 86 by 66, we get 1 and a remainder of 20.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtracting 66 from 86 leaves us with 20.
Fetch the next digit (4) from the dividend, attach it to 20 and continue: 204 / 66

Advancing to step 3:
When dividing 204 by 66, we get 3 with a remainder of 6.
The number 3 becomes the next digit in our result. 
Result so far: 13.0
The remainder is 6 after subtracting 198 from 204.
Include the next digit (8) from the dividend after 6, then repeat: 68 / 66

Going ahead to step 4:
The number 66 fits into 68 1 times, leaving a remainder of 2.
The next digit of our result is 1. 
Result so far: 131.0
Subtracting 66 from 68 leaves us with 2.
Append the next digit (9) from the dividend to 2 and continue with: 29 / 66

Advancing to step 5:
The number 66 fits into 29 0 times, leaving a remainder of 29.
The number 0 becomes the next digit in our result. 
Result so far: 1310.0
If we take 0 away from 29, we end up with 29.
Take the next digit (3) from the dividend and append it to 29, then repeat: 293 / 66

Going ahead to step 6:
66 goes into 293 4 times with a remainder of 29.
The next digit of our result is 4. 
Result so far: 13104.0
Deduct 264 from 293 and we're left with 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

Moving on to step 7:
If we divide 290 by 66, we get 4 and a remainder of 26.
The number 4 becomes the next digit in our result. 
Result so far: 13104.4
Deduct 264 from 290 and we're left with 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

On to step 8:
260 divided by 66 is 3 with a remainder of 62.
Write down 3 as next digit of the result. 
Result so far: 13104.43
The remainder is 62 after subtracting 198 from 260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

Advancing to step 9:
The number 66 fits into 620 9 times, leaving a remainder of 26.
Put 9 as the next digit of the answer. 
Result so far: 13104.439
The remainder is 26 after subtracting 594 from 620.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Step 10:
66 can be fit into 260 3 times, resulting in a remainder of 62.
Write down 3 as next digit of the result. 
Result so far: 13104.4393
If we take 198 away from 260, we end up with 62.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

Advancing to step 11:
When dividing 620 by 66, we get 9 with a remainder of 26.
Write down 9 as next digit of the result. 
Result so far: 13104.43939
Deduct 594 from 620 and we're left with 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Moving on to step 12:
If we divide 260 by 66, we get 3 and a remainder of 62.
The next digit of our result is 3. 
Result so far: 13104.439393
If we subtract 198 from 260, we get 62.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

Let's proceed to step 13:
If we divide 620 by 66, we get 9 and a remainder of 26.
Put 9 as the next digit of the answer. 
Result so far: 13104.4393939
Subtract 594 from 620 to get 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Advancing to step 14:
260 divided by 66 is 3 with a remainder of 62.
The next digit of our result is 3. 
Result so far: 13104.43939393
The remainder is 62 after subtracting 198 from 260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

The final outcome is 13104.43939393, with a leftover of 6.2e-08.