53491243 ÷ 28 
We want to figure out the number of times 53491243 can be divided by 28.

On to step 1:
28 can be fit into 5 0 times, resulting in a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 5 after subtracting 0 from 5.
Grab the next digit (3) from the dividend, add it to 5, then carry on: 53 / 28

On to step 2:
28 can be fit into 53 1 times, resulting in a remainder of 25.
The next digit of our result is 1. 
Result so far: 1.0
If we take 28 away from 53, we end up with 25.
Fetch the next digit (4) from the dividend, attach it to 25 and continue: 254 / 28

Let's proceed to step 3:
If we divide 254 by 28, we get 9 and a remainder of 2.
The next digit of our result is 9. 
Result so far: 19.0
Subtracting 252 from 254 leaves us with 2.
Take the next digit (9) from the dividend and append it to 2, then repeat: 29 / 28

On to step 4:
28 goes into 29 1 times with a remainder of 1.
Put 1 as the next digit of the answer. 
Result so far: 191.0
The remainder is 1 after subtracting 28 from 29.
Append the next digit (1) from the dividend to 1 and continue with: 11 / 28

On to step 5:
11 divided by 28 is 0 with a remainder of 11.
The next digit of our result is 0. 
Result so far: 1910.0
The remainder is 11 after subtracting 0 from 11.
Fetch the next digit (2) from the dividend, attach it to 11 and continue: 112 / 28

Moving on to step 6:
28 goes into 112 4 times with a remainder of 0.
The next digit of our result is 4. 
Result so far: 19104.0
If we take 112 away from 112, we end up with 0.
Include the next digit (4) from the dividend after 0, then repeat: 4 / 28

Let's proceed to step 7:
When dividing 4 by 28, we get 0 with a remainder of 4.
Put 0 as the next digit of the answer. 
Result so far: 191040.0
Deduct 0 from 4 and we're left with 4.
Bring next digit (3) of the dividend behind the 4 and repeat the process: 43 / 28

Step 8:
When dividing 43 by 28, we get 1 with a remainder of 15.
Use 1 as the next digit of our solution. 
Result so far: 1910401.0
The remainder is 15 after subtracting 28 from 43.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Step 9:
When dividing 150 by 28, we get 5 with a remainder of 10.
The number 5 becomes the next digit in our result. 
Result so far: 1910401.5
Subtracting 140 from 150 leaves us with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Let's proceed to step 10:
If we divide 100 by 28, we get 3 and a remainder of 16.
Put 3 as the next digit of the answer. 
Result so far: 1910401.53
Subtracting 84 from 100 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.

Advancing to step 11:
28 goes into 160 5 times with a remainder of 20.
Put 5 as the next digit of the answer. 
Result so far: 1910401.535
If we subtract 140 from 160, we 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.

Advancing to step 12:
If we divide 200 by 28, we get 7 and a remainder of 4.
Put 7 as the next digit of the answer. 
Result so far: 1910401.5357
If we subtract 196 from 200, 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.

Moving on to step 13:
40 divided by 28 is 1 with a remainder of 12.
Record the quotient 1 as the next digit in the result. 
Result so far: 1910401.53571
Subtracting 28 from 40 leaves us with 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 14:
When dividing 120 by 28, we get 4 with a remainder of 8.
The number 4 becomes the next digit in our result. 
Result so far: 1910401.535714
Subtract 112 from 120 to get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Moving on to step 15:
80 divided by 28 is 2 with a remainder of 24.
Put 2 as the next digit of the answer. 
Result so far: 1910401.5357142
Subtract 56 from 80 to 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.

Going ahead to step 16:
The number 28 fits into 240 8 times, leaving a remainder of 16.
Put 8 as the next digit of the answer. 
Result so far: 1910401.53571428
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.

Our division results in 1910401.53571428 with a remaining 1.6e-08.