Let's divide 401988 by 28
We want to figure out the number of times 401988 can be divided by 28.

Let's proceed to step 1:
When dividing 4 by 28, we get 0 with a remainder of 4.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 4 to get 4.
Grab the next digit (0) from the dividend, add it to 4, then carry on: 40 / 28

Going ahead to step 2:
If we divide 40 by 28, we get 1 and a remainder of 12.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtracting 28 from 40 leaves us with 12.
Bring next digit (1) of the dividend behind the 12 and repeat the process: 121 / 28

Step 3:
The number 28 fits into 121 4 times, leaving a remainder of 9.
Put 4 as the next digit of the answer. 
Result so far: 14.0
If we subtract 112 from 121, we get 9.
Append the next digit (9) from the dividend to 9 and continue with: 99 / 28

Step 4:
28 goes into 99 3 times with a remainder of 15.
The next digit of our result is 3. 
Result so far: 143.0
Subtract 84 from 99 to get 15.
Include the next digit (8) from the dividend after 15, then repeat: 158 / 28

Moving on to step 5:
The number 28 fits into 158 5 times, leaving a remainder of 18.
Write down 5 as next digit of the result. 
Result so far: 1435.0
If we take 140 away from 158, we end up with 18.
Grab the next digit (8) from the dividend, add it to 18, then carry on: 188 / 28

Let's proceed to step 6:
When dividing 188 by 28, we get 6 with a remainder of 20.
Put 6 as the next digit of the answer. 
Result so far: 14356.0
Subtract 168 from 188 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.

Going ahead to step 7:
When dividing 200 by 28, we get 7 with a remainder of 4.
The number 7 becomes the next digit in our result. 
Result so far: 14356.7
If we take 196 away from 200, we end up with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Going ahead to step 8:
28 goes into 40 1 times with a remainder of 12.
The number 1 becomes the next digit in our result. 
Result so far: 14356.71
Subtract 28 from 40 to get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

On to step 9:
If we divide 120 by 28, we get 4 and a remainder of 8.
Use 4 as the next digit of our solution. 
Result so far: 14356.714
Subtracting 112 from 120 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.

Step 10:
28 can be fit into 80 2 times, resulting in a remainder of 24.
Put 2 as the next digit of the answer. 
Result so far: 14356.7142
If we take 56 away from 80, we end up 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.

Let's proceed to step 11:
The number 28 fits into 240 8 times, leaving a remainder of 16.
The next digit of our result is 8. 
Result so far: 14356.71428
Subtracting 224 from 240 leaves us with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Going ahead to step 12:
28 goes into 160 5 times with a remainder of 20.
Write down 5 as next digit of the result. 
Result so far: 14356.714285
If we take 140 away from 160, we end up with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Let's proceed to step 13:
28 can be fit into 200 7 times, resulting in a remainder of 4.
Use 7 as the next digit of our solution. 
Result so far: 14356.7142857
Subtract 196 from 200 to 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.

Let's proceed to step 14:
If we divide 40 by 28, we get 1 and a remainder of 12.
Record the quotient 1 as the next digit in the result. 
Result so far: 14356.71428571
Subtract 28 from 40 to get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

In conclusion, the division gives 14356.71428571 with a balance of 1.2e-08.