870012 ÷ 10 
We're looking to find how many times 10 goes into 870012.

Step 1:
The number 10 fits into 8 0 times, leaving a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Fetch the next digit (7) from the dividend, attach it to 8 and continue: 87 / 10

Step 2:
87 divided by 10 is 8 with a remainder of 7.
The next digit of our result is 8. 
Result so far: 8.0
Deduct 80 from 87 and we're left with 7.
Grab the next digit (0) from the dividend, add it to 7, then carry on: 70 / 10

On to step 3:
70 divided by 10 is 7 with a remainder of 0.
Record the quotient 7 as the next digit in the result. 
Result so far: 87.0
The remainder is 0 after subtracting 70 from 70.
Grab the next digit (0) from the dividend, add it to 0, then carry on: 0 / 10

Advancing to step 4:
If we divide 0 by 10, we get 0 and a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 870.0
Subtract 0 from 0 to get 0.
Fetch the next digit (1) from the dividend, attach it to 0 and continue: 1 / 10

On to step 5:
If we divide 1 by 10, we get 0 and a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 8700.0
Subtracting 0 from 1 leaves us with 1.
Fetch the next digit (2) from the dividend, attach it to 1 and continue: 12 / 10

Let's proceed to step 6:
10 can be fit into 12 1 times, resulting in a remainder of 2.
The next digit of our result is 1. 
Result so far: 87001.0
Subtracting 10 from 12 leaves us with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Going ahead to step 7:
When dividing 20 by 10, we get 2 with a remainder of 0.
Record the quotient 2 as the next digit in the result. 
Result so far: 87001.2
Subtract 20 from 20 to get 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 8:
0 divided by 10 is 0 with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 87001.2
Subtract 0 from 0 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Step 9:
If we divide 0 by 10, we get 0 and a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 87001.2
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 87001.2, and the remainder is 0.0.