390339 ÷ 88 
We're looking to find how many times 88 goes into 390339.

Moving on to step 1:
When dividing 3 by 88, we get 0 with a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 3 after subtracting 0 from 3.
Fetch the next digit (9) from the dividend, attach it to 3 and continue: 39 / 88

On to step 2:
The number 88 fits into 39 0 times, leaving a remainder of 39.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 39 after subtracting 0 from 39.
Grab the next digit (0) from the dividend, add it to 39, then carry on: 390 / 88

Going ahead to step 3:
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: 4.0
Deduct 352 from 390 and we're left with 38.
Fetch the next digit (3) from the dividend, attach it to 38 and continue: 383 / 88

Step 4:
88 can be fit into 383 4 times, resulting in a remainder of 31.
Record the quotient 4 as the next digit in the result. 
Result so far: 44.0
The remainder is 31 after subtracting 352 from 383.
Fetch the next digit (3) from the dividend, attach it to 31 and continue: 313 / 88

Moving on to step 5:
88 goes into 313 3 times with a remainder of 49.
The next digit of our result is 3. 
Result so far: 443.0
If we subtract 264 from 313, we get 49.
Include the next digit (9) from the dividend after 49, then repeat: 499 / 88

Let's proceed to step 6:
When dividing 499 by 88, we get 5 with a remainder of 59.
Record the quotient 5 as the next digit in the result. 
Result so far: 4435.0
If we subtract 440 from 499, we get 59.
Since there are no more digits in the dividend, we add a zero to the remainder making it 590, and continue the process.

On to step 7:
When dividing 590 by 88, we get 6 with a remainder of 62.
Record the quotient 6 as the next digit in the result. 
Result so far: 4435.6
Deduct 528 from 590 and we're left with 62.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

Step 8:
The number 88 fits into 620 7 times, leaving a remainder of 4.
The next digit of our result is 7. 
Result so far: 4435.67
If we subtract 616 from 620, we get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

On to step 9:
If we divide 40 by 88, we get 0 and a remainder of 40.
Use 0 as the next digit of our solution. 
Result so far: 4435.67
Deduct 0 from 40 and we're left with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Moving on to step 10:
400 divided by 88 is 4 with a remainder of 48.
Put 4 as the next digit of the answer. 
Result so far: 4435.6704
If we subtract 352 from 400, we get 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Step 11:
If we divide 480 by 88, we get 5 and a remainder of 40.
Record the quotient 5 as the next digit in the result. 
Result so far: 4435.67045
If we take 440 away from 480, we end up with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Advancing to step 12:
400 divided by 88 is 4 with a remainder of 48.
The next digit of our result is 4. 
Result so far: 4435.670454
Deduct 352 from 400 and we're left with 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Let's proceed to step 13:
480 divided by 88 is 5 with a remainder of 40.
Use 5 as the next digit of our solution. 
Result so far: 4435.6704545
Subtracting 440 from 480 leaves us with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Going ahead to step 14:
The number 88 fits into 400 4 times, leaving a remainder of 48.
Put 4 as the next digit of the answer. 
Result so far: 4435.67045454
If we subtract 352 from 400, we get 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

The final result is 4435.67045454 with a remainder of 4.8e-08.