We look at the division of 878239 by 7 
We want to divide 878239 by 7.

Step 1:
7 goes into 8 1 times with a remainder of 1.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we take 7 away from 8, we end up with 1.
Include the next digit (7) from the dividend after 1, then repeat: 17 / 7

Moving on to step 2:
When dividing 17 by 7, we get 2 with a remainder of 3.
The next digit of our result is 2. 
Result so far: 12.0
Subtract 14 from 17 to get 3.
Bring next digit (8) of the dividend behind the 3 and repeat the process: 38 / 7

Going ahead to step 3:
The number 7 fits into 38 5 times, leaving a remainder of 3.
The next digit of our result is 5. 
Result so far: 125.0
Subtracting 35 from 38 leaves us with 3.
Take the next digit (2) from the dividend and append it to 3, then repeat: 32 / 7

Step 4:
7 can be fit into 32 4 times, resulting in a remainder of 4.
Record the quotient 4 as the next digit in the result. 
Result so far: 1254.0
Subtract 28 from 32 to get 4.
Include the next digit (3) from the dividend after 4, then repeat: 43 / 7

On to step 5:
The number 7 fits into 43 6 times, leaving a remainder of 1.
Put 6 as the next digit of the answer. 
Result so far: 12546.0
If we take 42 away from 43, we end up with 1.
Take the next digit (9) from the dividend and append it to 1, then repeat: 19 / 7

Step 6:
If we divide 19 by 7, we get 2 and a remainder of 5.
Use 2 as the next digit of our solution. 
Result so far: 125462.0
Subtract 14 from 19 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.

Going ahead to step 7:
If we divide 50 by 7, we get 7 and a remainder of 1.
Record the quotient 7 as the next digit in the result. 
Result so far: 125462.7
Subtracting 49 from 50 leaves us with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Step 8:
7 can be fit into 10 1 times, resulting in a remainder of 3.
Record the quotient 1 as the next digit in the result. 
Result so far: 125462.71
If we take 7 away from 10, we end up with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Advancing to step 9:
If we divide 30 by 7, we get 4 and a remainder of 2.
The number 4 becomes the next digit in our result. 
Result so far: 125462.714
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.

On to step 10:
7 goes into 20 2 times with a remainder of 6.
The next digit of our result is 2. 
Result so far: 125462.7142
Subtract 14 from 20 to get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Moving on to step 11:
The number 7 fits into 60 8 times, leaving a remainder of 4.
Put 8 as the next digit of the answer. 
Result so far: 125462.71428
The remainder is 4 after subtracting 56 from 60.
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 12:
7 can be fit into 40 5 times, resulting in a remainder of 5.
Put 5 as the next digit of the answer. 
Result so far: 125462.714285
Subtracting 35 from 40 leaves us with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Step 13:
7 can be fit into 50 7 times, resulting in a remainder of 1.
Write down 7 as next digit of the result. 
Result so far: 125462.7142857
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.

Step 14:
If we divide 10 by 7, we get 1 and a remainder of 3.
Put 1 as the next digit of the answer. 
Result so far: 125462.71428571
Deduct 7 from 10 and we're left with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

The quotient of the division is 125462.71428571, and the remainder is 3e-09.