We're dividing 689431 by 88 
Our goal is to divide 689431 by 88.

Let's proceed to step 1:
88 goes into 6 0 times with a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Fetch the next digit (8) from the dividend, attach it to 6 and continue: 68 / 88

Let's proceed to step 2:
88 can be fit into 68 0 times, resulting in a remainder of 68.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 68 to get 68.
Take the next digit (9) from the dividend and append it to 68, then repeat: 689 / 88

On to step 3:
If we divide 689 by 88, we get 7 and a remainder of 73.
Record the quotient 7 as the next digit in the result. 
Result so far: 7.0
Subtract 616 from 689 to get 73.
Fetch the next digit (4) from the dividend, attach it to 73 and continue: 734 / 88

On to step 4:
The number 88 fits into 734 8 times, leaving a remainder of 30.
Record the quotient 8 as the next digit in the result. 
Result so far: 78.0
If we subtract 704 from 734, we get 30.
Bring next digit (3) of the dividend behind the 30 and repeat the process: 303 / 88

Advancing to step 5:
If we divide 303 by 88, we get 3 and a remainder of 39.
Record the quotient 3 as the next digit in the result. 
Result so far: 783.0
The remainder is 39 after subtracting 264 from 303.
Take the next digit (1) from the dividend and append it to 39, then repeat: 391 / 88

Let's proceed to step 6:
88 can be fit into 391 4 times, resulting in a remainder of 39.
The next digit of our result is 4. 
Result so far: 7834.0
Deduct 352 from 391 and we're left with 39.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

Advancing to step 7:
The number 88 fits into 390 4 times, leaving a remainder of 38.
Use 4 as the next digit of our solution. 
Result so far: 7834.4
If we subtract 352 from 390, we get 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

On to step 8:
If we divide 380 by 88, we get 4 and a remainder of 28.
The next digit of our result is 4. 
Result so far: 7834.44
Deduct 352 from 380 and we're left with 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

The final result is 7834.44 with a remainder of 0.028.