Let's divide 70424398 by 28
The aim is to understand the frequency of 28 in 70424398.

On to step 1:
7 divided by 28 is 0 with a remainder of 7.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 7 and we're left with 7.
Append the next digit (0) from the dividend to 7 and continue with: 70 / 28

On to step 2:
If we divide 70 by 28, we get 2 and a remainder of 14.
Use 2 as the next digit of our solution. 
Result so far: 2.0
Subtract 56 from 70 to get 14.
Bring next digit (4) of the dividend behind the 14 and repeat the process: 144 / 28

Advancing to step 3:
144 divided by 28 is 5 with a remainder of 4.
The next digit of our result is 5. 
Result so far: 25.0
If we subtract 140 from 144, we get 4.
Append the next digit (2) from the dividend to 4 and continue with: 42 / 28

Step 4:
If we divide 42 by 28, we get 1 and a remainder of 14.
Put 1 as the next digit of the answer. 
Result so far: 251.0
Subtracting 28 from 42 leaves us with 14.
Fetch the next digit (4) from the dividend, attach it to 14 and continue: 144 / 28

Step 5:
28 can be fit into 144 5 times, resulting in a remainder of 4.
Use 5 as the next digit of our solution. 
Result so far: 2515.0
Deduct 140 from 144 and we're left with 4.
Append the next digit (3) from the dividend to 4 and continue with: 43 / 28

Step 6:
28 can be fit into 43 1 times, resulting in a remainder of 15.
The next digit of our result is 1. 
Result so far: 25151.0
Deduct 28 from 43 and we're left with 15.
Fetch the next digit (9) from the dividend, attach it to 15 and continue: 159 / 28

Advancing to step 7:
When dividing 159 by 28, we get 5 with a remainder of 19.
Write down 5 as next digit of the result. 
Result so far: 251515.0
Subtract 140 from 159 to get 19.
Include the next digit (8) from the dividend after 19, then repeat: 198 / 28

Let's proceed to step 8:
198 divided by 28 is 7 with a remainder of 2.
The next digit of our result is 7. 
Result so far: 2515157.0
Deduct 196 from 198 and we're left 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.

Let's proceed to step 9:
When dividing 20 by 28, we get 0 with a remainder of 20.
Put 0 as the next digit of the answer. 
Result so far: 2515157.0
If we subtract 0 from 20, 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.

Let's proceed to step 10:
28 goes into 200 7 times with a remainder of 4.
The next digit of our result is 7. 
Result so far: 2515157.07
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.

On to step 11:
28 can be fit into 40 1 times, resulting in a remainder of 12.
Write down 1 as next digit of the result. 
Result so far: 2515157.071
The remainder is 12 after subtracting 28 from 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Going ahead to step 12:
The number 28 fits into 120 4 times, leaving a remainder of 8.
The number 4 becomes the next digit in our result. 
Result so far: 2515157.0714
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.

On to step 13:
28 goes into 80 2 times with a remainder of 24.
The number 2 becomes the next digit in our result. 
Result so far: 2515157.07142
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 14:
When dividing 240 by 28, we get 8 with a remainder of 16.
Put 8 as the next digit of the answer. 
Result so far: 2515157.071428
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.

Let's proceed to step 15:
160 divided by 28 is 5 with a remainder of 20.
Put 5 as the next digit of the answer. 
Result so far: 2515157.0714285
Subtracting 140 from 160 leaves us 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.

Advancing to step 16:
When dividing 200 by 28, we get 7 with a remainder of 4.
Use 7 as the next digit of our solution. 
Result so far: 2515157.07142857
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.

After the division, we end up with 2515157.07142857 and a remainder of 4e-09.