We divide 870555 by 66
We want to figure out the number of times 870555 can be divided by 66.

Moving on to step 1:
66 can be fit into 8 0 times, resulting in 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.
Include the next digit (7) from the dividend after 8, then repeat: 87 / 66

Advancing to step 2:
66 goes into 87 1 times with a remainder of 21.
Put 1 as the next digit of the answer. 
Result so far: 1.0
The remainder is 21 after subtracting 66 from 87.
Append the next digit (0) from the dividend to 21 and continue with: 210 / 66

Let's proceed to step 3:
If we divide 210 by 66, we get 3 and a remainder of 12.
Put 3 as the next digit of the answer. 
Result so far: 13.0
If we subtract 198 from 210, we get 12.
Take the next digit (5) from the dividend and append it to 12, then repeat: 125 / 66

Going ahead to step 4:
66 can be fit into 125 1 times, resulting in a remainder of 59.
Use 1 as the next digit of our solution. 
Result so far: 131.0
Deduct 66 from 125 and we're left with 59.
Grab the next digit (5) from the dividend, add it to 59, then carry on: 595 / 66

Let's proceed to step 5:
The number 66 fits into 595 9 times, leaving a remainder of 1.
Use 9 as the next digit of our solution. 
Result so far: 1319.0
If we subtract 594 from 595, we get 1.
Grab the next digit (5) from the dividend, add it to 1, then carry on: 15 / 66

Moving on to step 6:
66 can be fit into 15 0 times, resulting in a remainder of 15.
Use 0 as the next digit of our solution. 
Result so far: 13190.0
Subtract 0 from 15 to get 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Step 7:
150 divided by 66 is 2 with a remainder of 18.
Write down 2 as next digit of the result. 
Result so far: 13190.2
Subtract 132 from 150 to get 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

On to step 8:
66 can be fit into 180 2 times, resulting in a remainder of 48.
Put 2 as the next digit of the answer. 
Result so far: 13190.22
If we subtract 132 from 180, we get 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

The final outcome is 13190.22, with a leftover of 0.048.