We look at the division of 28115121 by 4 
Let's see how many times 4 fits into 28115121.

Let's proceed to step 1:
When dividing 2 by 4, we get 0 with a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 2 after subtracting 0 from 2.
Fetch the next digit (8) from the dividend, attach it to 2 and continue: 28 / 4

Advancing to step 2:
When dividing 28 by 4, we get 7 with a remainder of 0.
The next digit of our result is 7. 
Result so far: 7.0
Subtract 28 from 28 to get 0.
Append the next digit (1) from the dividend to 0 and continue with: 1 / 4

Let's proceed to step 3:
When dividing 1 by 4, we get 0 with a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 70.0
Subtract 0 from 1 to get 1.
Append the next digit (1) from the dividend to 1 and continue with: 11 / 4

Let's proceed to step 4:
If we divide 11 by 4, we get 2 and a remainder of 3.
Put 2 as the next digit of the answer. 
Result so far: 702.0
Deduct 8 from 11 and we're left with 3.
Fetch the next digit (5) from the dividend, attach it to 3 and continue: 35 / 4

Going ahead to step 5:
4 can be fit into 35 8 times, resulting in a remainder of 3.
Put 8 as the next digit of the answer. 
Result so far: 7028.0
Subtract 32 from 35 to get 3.
Take the next digit (1) from the dividend and append it to 3, then repeat: 31 / 4

Going ahead to step 6:
31 divided by 4 is 7 with a remainder of 3.
Put 7 as the next digit of the answer. 
Result so far: 70287.0
If we subtract 28 from 31, we get 3.
Grab the next digit (2) from the dividend, add it to 3, then carry on: 32 / 4

Going ahead to step 7:
4 can be fit into 32 8 times, resulting in a remainder of 0.
Write down 8 as next digit of the result. 
Result so far: 702878.0
Deduct 32 from 32 and we're left with 0.
Append the next digit (1) from the dividend to 0 and continue with: 1 / 4

Advancing to step 8:
When dividing 1 by 4, we get 0 with a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 7028780.0
The remainder is 1 after subtracting 0 from 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Going ahead to step 9:
4 goes into 10 2 times with a remainder of 2.
Write down 2 as next digit of the result. 
Result so far: 7028780.2
If we take 8 away from 10, we end up with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

On to step 10:
When dividing 20 by 4, we get 5 with a remainder of 0.
The number 5 becomes the next digit in our result. 
Result so far: 7028780.25
The remainder is 0 after subtracting 20 from 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Going ahead to step 11:
4 can be fit into 0 0 times, resulting in a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 7028780.25
Deduct 0 from 0 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Let's proceed to step 12:
When dividing 0 by 4, we get 0 with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 7028780.25
Subtracting 0 from 0 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

After the division, we end up with 7028780.25 and a remainder of 0.0.