518840 ÷ 7 
Let's see how many times 7 fits into 518840.

On to step 1:
7 goes into 5 0 times with a remainder of 5.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 5 to get 5.
Take the next digit (1) from the dividend and append it to 5, then repeat: 51 / 7

Moving on to step 2:
51 divided by 7 is 7 with a remainder of 2.
Put 7 as the next digit of the answer. 
Result so far: 7.0
Subtracting 49 from 51 leaves us with 2.
Grab the next digit (8) from the dividend, add it to 2, then carry on: 28 / 7

On to step 3:
7 can be fit into 28 4 times, resulting in a remainder of 0.
Put 4 as the next digit of the answer. 
Result so far: 74.0
If we take 28 away from 28, we end up with 0.
Grab the next digit (8) from the dividend, add it to 0, then carry on: 8 / 7

Moving on to step 4:
If we divide 8 by 7, we get 1 and a remainder of 1.
The next digit of our result is 1. 
Result so far: 741.0
If we take 7 away from 8, we end up with 1.
Fetch the next digit (4) from the dividend, attach it to 1 and continue: 14 / 7

On to step 5:
The number 7 fits into 14 2 times, leaving a remainder of 0.
Use 2 as the next digit of our solution. 
Result so far: 7412.0
Subtract 14 from 14 to get 0.
Take the next digit (0) from the dividend and append it to 0, then repeat: 0 / 7

Advancing to step 6:
The number 7 fits into 0 0 times, leaving a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 74120.0
Subtracting 0 from 0 leaves us 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.

Going ahead to step 7:
7 goes into 0 0 times with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 74120.0
Deduct 0 from 0 and we're left 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.

Let's proceed to step 8:
When dividing 0 by 7, we get 0 with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 74120.0
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 final outcome is 74120.0, with a leftover of 0.0.