Let's divide 86019580 by 66
Let's see how many times 66 fits into 86019580.

Going ahead to step 1:
66 can be fit into 8 0 times, resulting in a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Include the next digit (6) from the dividend after 8, then repeat: 86 / 66

Going ahead to step 2:
When dividing 86 by 66, we get 1 with a remainder of 20.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Deduct 66 from 86 and we're left with 20.
Fetch the next digit (0) from the dividend, attach it to 20 and continue: 200 / 66

Step 3:
200 divided by 66 is 3 with a remainder of 2.
The next digit of our result is 3. 
Result so far: 13.0
Deduct 198 from 200 and we're left with 2.
Append the next digit (1) from the dividend to 2 and continue with: 21 / 66

Moving on to step 4:
When dividing 21 by 66, we get 0 with a remainder of 21.
The next digit of our result is 0. 
Result so far: 130.0
Subtract 0 from 21 to get 21.
Take the next digit (9) from the dividend and append it to 21, then repeat: 219 / 66

Moving on to step 5:
66 goes into 219 3 times with a remainder of 21.
The next digit of our result is 3. 
Result so far: 1303.0
Subtract 198 from 219 to get 21.
Take the next digit (5) from the dividend and append it to 21, then repeat: 215 / 66

Going ahead to step 6:
If we divide 215 by 66, we get 3 and a remainder of 17.
Use 3 as the next digit of our solution. 
Result so far: 13033.0
The remainder is 17 after subtracting 198 from 215.
Append the next digit (8) from the dividend to 17 and continue with: 178 / 66

Moving on to step 7:
178 divided by 66 is 2 with a remainder of 46.
The number 2 becomes the next digit in our result. 
Result so far: 130332.0
Subtract 132 from 178 to get 46.
Append the next digit (0) from the dividend to 46 and continue with: 460 / 66

On to step 8:
66 goes into 460 6 times with a remainder of 64.
The next digit of our result is 6. 
Result so far: 1303326.0
Subtracting 396 from 460 leaves us with 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Moving on to step 9:
66 goes into 640 9 times with a remainder of 46.
Put 9 as the next digit of the answer. 
Result so far: 1303326.9
Deduct 594 from 640 and we're left with 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Going ahead to step 10:
460 divided by 66 is 6 with a remainder of 64.
The next digit of our result is 6. 
Result so far: 1303326.96
If we take 396 away from 460, we end up with 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

On to step 11:
66 can be fit into 640 9 times, resulting in a remainder of 46.
The next digit of our result is 9. 
Result so far: 1303326.969
Subtracting 594 from 640 leaves us with 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Advancing to step 12:
66 goes into 460 6 times with a remainder of 64.
Put 6 as the next digit of the answer. 
Result so far: 1303326.9696
Subtracting 396 from 460 leaves us with 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

On to step 13:
If we divide 640 by 66, we get 9 and a remainder of 46.
Put 9 as the next digit of the answer. 
Result so far: 1303326.96969
Subtracting 594 from 640 leaves us with 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Let's proceed to step 14:
If we divide 460 by 66, we get 6 and a remainder of 64.
The next digit of our result is 6. 
Result so far: 1303326.969696
Deduct 396 from 460 and we're left with 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Going ahead to step 15:
66 goes into 640 9 times with a remainder of 46.
Write down 9 as next digit of the result. 
Result so far: 1303326.9696969
Deduct 594 from 640 and we're left with 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Going ahead to step 16:
460 divided by 66 is 6 with a remainder of 64.
Use 6 as the next digit of our solution. 
Result so far: 1303326.96969696
The remainder is 64 after subtracting 396 from 460.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

After the division, we end up with 1303326.96969696 and a remainder of 6.4e-08.