We're dividing 508402 by 70 
We're looking to find how many times 70 goes into 508402.

Let's proceed to step 1:
The number 70 fits into 5 0 times, leaving a remainder of 5.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 5 after subtracting 0 from 5.
Take the next digit (0) from the dividend and append it to 5, then repeat: 50 / 70

Let's proceed to step 2:
50 divided by 70 is 0 with a remainder of 50.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 50 and we're left with 50.
Take the next digit (8) from the dividend and append it to 50, then repeat: 508 / 70

Going ahead to step 3:
The number 70 fits into 508 7 times, leaving a remainder of 18.
The number 7 becomes the next digit in our result. 
Result so far: 7.0
If we subtract 490 from 508, we get 18.
Append the next digit (4) from the dividend to 18 and continue with: 184 / 70

On to step 4:
If we divide 184 by 70, we get 2 and a remainder of 44.
The next digit of our result is 2. 
Result so far: 72.0
Deduct 140 from 184 and we're left with 44.
Include the next digit (0) from the dividend after 44, then repeat: 440 / 70

Step 5:
70 goes into 440 6 times with a remainder of 20.
The number 6 becomes the next digit in our result. 
Result so far: 726.0
If we subtract 420 from 440, we get 20.
Include the next digit (2) from the dividend after 20, then repeat: 202 / 70

Advancing to step 6:
When dividing 202 by 70, we get 2 with a remainder of 62.
The next digit of our result is 2. 
Result so far: 7262.0
If we subtract 140 from 202, we get 62.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

Advancing to step 7:
620 divided by 70 is 8 with a remainder of 60.
The next digit of our result is 8. 
Result so far: 7262.8
Deduct 560 from 620 and we're left with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Moving on to step 8:
70 can be fit into 600 8 times, resulting in a remainder of 40.
Put 8 as the next digit of the answer. 
Result so far: 7262.88
If we subtract 560 from 600, we get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

The final outcome is 7262.88, with a leftover of 0.04.