We're dividing 402438 by 88 
Our goal is to divide 402438 by 88.

Moving on to step 1:
4 divided by 88 is 0 with a remainder of 4.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 4 and we're left with 4.
Include the next digit (0) from the dividend after 4, then repeat: 40 / 88

Advancing to step 2:
When dividing 40 by 88, we get 0 with a remainder of 40.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 40 after subtracting 0 from 40.
Fetch the next digit (2) from the dividend, attach it to 40 and continue: 402 / 88

Going ahead to step 3:
402 divided by 88 is 4 with a remainder of 50.
Write down 4 as next digit of the result. 
Result so far: 4.0
Subtracting 352 from 402 leaves us with 50.
Grab the next digit (4) from the dividend, add it to 50, then carry on: 504 / 88

Advancing to step 4:
The number 88 fits into 504 5 times, leaving a remainder of 64.
Record the quotient 5 as the next digit in the result. 
Result so far: 45.0
The remainder is 64 after subtracting 440 from 504.
Take the next digit (3) from the dividend and append it to 64, then repeat: 643 / 88

Moving on to step 5:
The number 88 fits into 643 7 times, leaving a remainder of 27.
Record the quotient 7 as the next digit in the result. 
Result so far: 457.0
Deduct 616 from 643 and we're left with 27.
Fetch the next digit (8) from the dividend, attach it to 27 and continue: 278 / 88

On to step 6:
88 goes into 278 3 times with a remainder of 14.
Record the quotient 3 as the next digit in the result. 
Result so far: 4573.0
If we take 264 away from 278, we end up with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Going ahead to step 7:
88 goes into 140 1 times with a remainder of 52.
Write down 1 as next digit of the result. 
Result so far: 4573.1
Subtract 88 from 140 to get 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Moving on to step 8:
The number 88 fits into 520 5 times, leaving a remainder of 80.
The next digit of our result is 5. 
Result so far: 4573.15
Deduct 440 from 520 and we're left with 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Let's proceed to step 9:
The number 88 fits into 800 9 times, leaving a remainder of 8.
The number 9 becomes the next digit in our result. 
Result so far: 4573.159
If we take 792 away from 800, we end up with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

On to step 10:
If we divide 80 by 88, we get 0 and a remainder of 80.
Record the quotient 0 as the next digit in the result. 
Result so far: 4573.159
The remainder is 80 after subtracting 0 from 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Advancing to step 11:
When dividing 800 by 88, we get 9 with a remainder of 8.
Put 9 as the next digit of the answer. 
Result so far: 4573.15909
Subtracting 792 from 800 leaves us with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Let's proceed to step 12:
88 goes into 80 0 times with a remainder of 80.
The number 0 becomes the next digit in our result. 
Result so far: 4573.15909
If we subtract 0 from 80, we get 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Moving on to step 13:
800 divided by 88 is 9 with a remainder of 8.
The number 9 becomes the next digit in our result. 
Result so far: 4573.1590909
If we take 792 away from 800, we end up with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Advancing to step 14:
88 can be fit into 80 0 times, resulting in a remainder of 80.
The number 0 becomes the next digit in our result. 
Result so far: 4573.1590909
Subtracting 0 from 80 leaves us with 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

The final result is 4573.1590909 with a remainder of 8e-08.