Let's divide 421668 by 28
We want to divide 421668 by 28.

Step 1:
28 can be fit into 4 0 times, resulting in a remainder of 4.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 4 leaves us with 4.
Grab the next digit (2) from the dividend, add it to 4, then carry on: 42 / 28

Advancing to step 2:
If we divide 42 by 28, we get 1 and a remainder of 14.
Write down 1 as next digit of the result. 
Result so far: 1.0
Deduct 28 from 42 and we're left with 14.
Fetch the next digit (1) from the dividend, attach it to 14 and continue: 141 / 28

Let's proceed to step 3:
When dividing 141 by 28, we get 5 with a remainder of 1.
Use 5 as the next digit of our solution. 
Result so far: 15.0
Subtract 140 from 141 to get 1.
Include the next digit (6) from the dividend after 1, then repeat: 16 / 28

Advancing to step 4:
28 can be fit into 16 0 times, resulting in a remainder of 16.
Use 0 as the next digit of our solution. 
Result so far: 150.0
Subtracting 0 from 16 leaves us with 16.
Grab the next digit (6) from the dividend, add it to 16, then carry on: 166 / 28

Moving on to step 5:
28 can be fit into 166 5 times, resulting in a remainder of 26.
Write down 5 as next digit of the result. 
Result so far: 1505.0
Deduct 140 from 166 and we're left with 26.
Grab the next digit (8) from the dividend, add it to 26, then carry on: 268 / 28

Advancing to step 6:
268 divided by 28 is 9 with a remainder of 16.
The next digit of our result is 9. 
Result so far: 15059.0
If we subtract 252 from 268, we get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Step 7:
When dividing 160 by 28, we get 5 with a remainder of 20.
The number 5 becomes the next digit in our result. 
Result so far: 15059.5
The remainder is 20 after subtracting 140 from 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Step 8:
200 divided by 28 is 7 with a remainder of 4.
Write down 7 as next digit of the result. 
Result so far: 15059.57
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.

Let's proceed to step 9:
40 divided by 28 is 1 with a remainder of 12.
The next digit of our result is 1. 
Result so far: 15059.571
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 10:
28 can be fit into 120 4 times, resulting in a remainder of 8.
Put 4 as the next digit of the answer. 
Result so far: 15059.5714
Deduct 112 from 120 and we're left 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 11:
The number 28 fits into 80 2 times, leaving a remainder of 24.
The next digit of our result is 2. 
Result so far: 15059.57142
If we subtract 56 from 80, we get 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 12:
If we divide 240 by 28, we get 8 and a remainder of 16.
The next digit of our result is 8. 
Result so far: 15059.571428
The remainder is 16 after subtracting 224 from 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Advancing to step 13:
28 goes into 160 5 times with a remainder of 20.
Record the quotient 5 as the next digit in the result. 
Result so far: 15059.5714285
Subtract 140 from 160 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.

Step 14:
28 goes into 200 7 times with a remainder of 4.
Put 7 as the next digit of the answer. 
Result so far: 15059.57142857
Subtracting 196 from 200 leaves us 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.

The final result is 15059.57142857 with a remainder of 4e-09.