Let's divide 403870 by 144
Our goal is to divide 403870 by 144.

Let's proceed to step 1:
The number 144 fits into 4 0 times, leaving 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.
Bring next digit (0) of the dividend behind the 4 and repeat the process: 40 / 144

Step 2:
40 divided by 144 is 0 with a remainder of 40.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 40 after subtracting 0 from 40.
Take the next digit (3) from the dividend and append it to 40, then repeat: 403 / 144

Moving on to step 3:
144 can be fit into 403 2 times, resulting in a remainder of 115.
The next digit of our result is 2. 
Result so far: 2.0
If we take 288 away from 403, we end up with 115.
Grab the next digit (8) from the dividend, add it to 115, then carry on: 1158 / 144

Advancing to step 4:
144 can be fit into 1158 8 times, resulting in a remainder of 6.
Write down 8 as next digit of the result. 
Result so far: 28.0
If we take 1152 away from 1158, we end up with 6.
Take the next digit (7) from the dividend and append it to 6, then repeat: 67 / 144

Going ahead to step 5:
67 divided by 144 is 0 with a remainder of 67.
Record the quotient 0 as the next digit in the result. 
Result so far: 280.0
If we subtract 0 from 67, we get 67.
Bring next digit (0) of the dividend behind the 67 and repeat the process: 670 / 144

Step 6:
If we divide 670 by 144, we get 4 and a remainder of 94.
Record the quotient 4 as the next digit in the result. 
Result so far: 2804.0
If we subtract 576 from 670, we get 94.
Since there are no more digits in the dividend, we add a zero to the remainder making it 940, and continue the process.

Advancing to step 7:
940 divided by 144 is 6 with a remainder of 76.
The next digit of our result is 6. 
Result so far: 2804.6
Subtracting 864 from 940 leaves us with 76.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

Moving on to step 8:
The number 144 fits into 760 5 times, leaving a remainder of 40.
The number 5 becomes the next digit in our result. 
Result so far: 2804.65
Deduct 720 from 760 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.

Advancing to step 9:
The number 144 fits into 400 2 times, leaving a remainder of 112.
Record the quotient 2 as the next digit in the result. 
Result so far: 2804.652
Subtracting 288 from 400 leaves us with 112.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1120, and continue the process.

Going ahead to step 10:
144 can be fit into 1120 7 times, resulting in a remainder of 112.
Put 7 as the next digit of the answer. 
Result so far: 2804.6527
Subtracting 1008 from 1120 leaves us with 112.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1120, and continue the process.

Moving on to step 11:
1120 divided by 144 is 7 with a remainder of 112.
The number 7 becomes the next digit in our result. 
Result so far: 2804.65277
If we take 1008 away from 1120, we end up with 112.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1120, and continue the process.

The final result is 2804.65277 with a remainder of 0.000112.