We divide 870489 by 7
We're looking to find how many times 7 goes into 870489.

Advancing to step 1:
8 divided by 7 is 1 with a remainder of 1.
The next digit of our result is 1. 
Result so far: 1.0
Subtracting 7 from 8 leaves us with 1.
Bring next digit (7) of the dividend behind the 1 and repeat the process: 17 / 7

Going ahead to step 2:
If we divide 17 by 7, we get 2 and a remainder of 3.
Use 2 as the next digit of our solution. 
Result so far: 12.0
Subtract 14 from 17 to get 3.
Fetch the next digit (0) from the dividend, attach it to 3 and continue: 30 / 7

Advancing to step 3:
The number 7 fits into 30 4 times, leaving a remainder of 2.
Use 4 as the next digit of our solution. 
Result so far: 124.0
Subtracting 28 from 30 leaves us with 2.
Append the next digit (4) from the dividend to 2 and continue with: 24 / 7

Going ahead to step 4:
If we divide 24 by 7, we get 3 and a remainder of 3.
Write down 3 as next digit of the result. 
Result so far: 1243.0
Deduct 21 from 24 and we're left with 3.
Bring next digit (8) of the dividend behind the 3 and repeat the process: 38 / 7

On to step 5:
The number 7 fits into 38 5 times, leaving a remainder of 3.
Record the quotient 5 as the next digit in the result. 
Result so far: 12435.0
Subtracting 35 from 38 leaves us with 3.
Fetch the next digit (9) from the dividend, attach it to 3 and continue: 39 / 7

Moving on to step 6:
If we divide 39 by 7, we get 5 and a remainder of 4.
The number 5 becomes the next digit in our result. 
Result so far: 124355.0
Subtracting 35 from 39 leaves us with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Let's proceed to step 7:
7 can be fit into 40 5 times, resulting in a remainder of 5.
Write down 5 as next digit of the result. 
Result so far: 124355.5
Subtract 35 from 40 to get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

On to step 8:
If we divide 50 by 7, we get 7 and a remainder of 1.
Write down 7 as next digit of the result. 
Result so far: 124355.57
The remainder is 1 after subtracting 49 from 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Let's proceed to step 9:
7 goes into 10 1 times with a remainder of 3.
Record the quotient 1 as the next digit in the result. 
Result so far: 124355.571
Subtract 7 from 10 to get 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Let's proceed to step 10:
7 can be fit into 30 4 times, resulting in a remainder of 2.
Record the quotient 4 as the next digit in the result. 
Result so far: 124355.5714
The remainder is 2 after subtracting 28 from 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Step 11:
When dividing 20 by 7, we get 2 with a remainder of 6.
The number 2 becomes the next digit in our result. 
Result so far: 124355.57142
The remainder is 6 after subtracting 14 from 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Step 12:
If we divide 60 by 7, we get 8 and a remainder of 4.
Put 8 as the next digit of the answer. 
Result so far: 124355.571428
Deduct 56 from 60 and we're left with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Moving on to step 13:
7 can be fit into 40 5 times, resulting in a remainder of 5.
Record the quotient 5 as the next digit in the result. 
Result so far: 124355.5714285
Subtract 35 from 40 to get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Let's proceed to step 14:
The number 7 fits into 50 7 times, leaving a remainder of 1.
Put 7 as the next digit of the answer. 
Result so far: 124355.57142857
If we subtract 49 from 50, we get 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

In conclusion, the division gives 124355.57142857 with a balance of 1e-09.