28894449 ÷ 4 
The aim is to understand the frequency of 4 in 28894449.

Step 1:
2 divided by 4 is 0 with a remainder of 2.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 2 to get 2.
Append the next digit (8) from the dividend to 2 and continue with: 28 / 4

Going ahead to step 2:
4 goes into 28 7 times with a remainder of 0.
The number 7 becomes the next digit in our result. 
Result so far: 7.0
The remainder is 0 after subtracting 28 from 28.
Bring next digit (8) of the dividend behind the 0 and repeat the process: 8 / 4

Advancing to step 3:
8 divided by 4 is 2 with a remainder of 0.
Use 2 as the next digit of our solution. 
Result so far: 72.0
Subtract 8 from 8 to get 0.
Fetch the next digit (9) from the dividend, attach it to 0 and continue: 9 / 4

Advancing to step 4:
When dividing 9 by 4, we get 2 with a remainder of 1.
The number 2 becomes the next digit in our result. 
Result so far: 722.0
If we subtract 8 from 9, we get 1.
Append the next digit (4) from the dividend to 1 and continue with: 14 / 4

Going ahead to step 5:
4 can be fit into 14 3 times, resulting in a remainder of 2.
The next digit of our result is 3. 
Result so far: 7223.0
Deduct 12 from 14 and we're left with 2.
Take the next digit (4) from the dividend and append it to 2, then repeat: 24 / 4

Going ahead to step 6:
24 divided by 4 is 6 with a remainder of 0.
Put 6 as the next digit of the answer. 
Result so far: 72236.0
If we take 24 away from 24, we end up with 0.
Grab the next digit (4) from the dividend, add it to 0, then carry on: 4 / 4

On to step 7:
The number 4 fits into 4 1 times, leaving a remainder of 0.
The next digit of our result is 1. 
Result so far: 722361.0
If we subtract 4 from 4, we get 0.
Fetch the next digit (9) from the dividend, attach it to 0 and continue: 9 / 4

Step 8:
If we divide 9 by 4, we get 2 and a remainder of 1.
Write down 2 as next digit of the result. 
Result so far: 7223612.0
Deduct 8 from 9 and we're left with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Step 9:
4 can be fit into 10 2 times, resulting in a remainder of 2.
Put 2 as the next digit of the answer. 
Result so far: 7223612.2
The remainder is 2 after subtracting 8 from 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Advancing to step 10:
The number 4 fits into 20 5 times, leaving a remainder of 0.
Use 5 as the next digit of our solution. 
Result so far: 7223612.25
If we take 20 away from 20, we end up 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.

Step 11:
If we divide 0 by 4, we get 0 and a remainder of 0.
The next digit of our result is 0. 
Result so far: 7223612.25
If we subtract 0 from 0, we get 0.
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 12:
4 goes into 0 0 times with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 7223612.25
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.

After the division, we end up with 7223612.25 and a remainder of 0.0.