We look at the division of 678394 by 88 
We want to divide 678394 by 88.

Let's proceed to step 1:
When dividing 6 by 88, we get 0 with a remainder of 6.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Append the next digit (7) from the dividend to 6 and continue with: 67 / 88

On to step 2:
If we divide 67 by 88, we get 0 and a remainder of 67.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 67 leaves us with 67.
Fetch the next digit (8) from the dividend, attach it to 67 and continue: 678 / 88

Advancing to step 3:
If we divide 678 by 88, we get 7 and a remainder of 62.
Write down 7 as next digit of the result. 
Result so far: 7.0
Subtracting 616 from 678 leaves us with 62.
Grab the next digit (3) from the dividend, add it to 62, then carry on: 623 / 88

Moving on to step 4:
623 divided by 88 is 7 with a remainder of 7.
The next digit of our result is 7. 
Result so far: 77.0
If we subtract 616 from 623, we get 7.
Include the next digit (9) from the dividend after 7, then repeat: 79 / 88

Step 5:
When dividing 79 by 88, we get 0 with a remainder of 79.
The next digit of our result is 0. 
Result so far: 770.0
Subtract 0 from 79 to get 79.
Grab the next digit (4) from the dividend, add it to 79, then carry on: 794 / 88

Step 6:
88 goes into 794 9 times with a remainder of 2.
Use 9 as the next digit of our solution. 
Result so far: 7709.0
Subtracting 792 from 794 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.

Step 7:
The number 88 fits into 20 0 times, leaving a remainder of 20.
Write down 0 as next digit of the result. 
Result so far: 7709.0
Subtract 0 from 20 to get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

On to step 8:
200 divided by 88 is 2 with a remainder of 24.
The number 2 becomes the next digit in our result. 
Result so far: 7709.02
Deduct 176 from 200 and we're left with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Advancing to step 9:
The number 88 fits into 240 2 times, leaving a remainder of 64.
Put 2 as the next digit of the answer. 
Result so far: 7709.022
Deduct 176 from 240 and we're left with 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

The final outcome is 7709.022, with a leftover of 0.0064.