Let's divide 870228 by 12
The aim is to understand the frequency of 12 in 870228.

Moving on to step 1:
If we divide 8 by 12, we get 0 and a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Bring next digit (7) of the dividend behind the 8 and repeat the process: 87 / 12

Moving on to step 2:
The number 12 fits into 87 7 times, leaving a remainder of 3.
Put 7 as the next digit of the answer. 
Result so far: 7.0
Subtracting 84 from 87 leaves us with 3.
Take the next digit (0) from the dividend and append it to 3, then repeat: 30 / 12

On to step 3:
If we divide 30 by 12, we get 2 and a remainder of 6.
Put 2 as the next digit of the answer. 
Result so far: 72.0
Deduct 24 from 30 and we're left with 6.
Fetch the next digit (2) from the dividend, attach it to 6 and continue: 62 / 12

Going ahead to step 4:
The number 12 fits into 62 5 times, leaving a remainder of 2.
Put 5 as the next digit of the answer. 
Result so far: 725.0
The remainder is 2 after subtracting 60 from 62.
Take the next digit (2) from the dividend and append it to 2, then repeat: 22 / 12

Let's proceed to step 5:
When dividing 22 by 12, we get 1 with a remainder of 10.
Use 1 as the next digit of our solution. 
Result so far: 7251.0
Subtract 12 from 22 to get 10.
Grab the next digit (8) from the dividend, add it to 10, then carry on: 108 / 12

On to step 6:
When dividing 108 by 12, we get 9 with a remainder of 0.
The number 9 becomes the next digit in our result. 
Result so far: 72519.0
Subtract 108 from 108 to 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.

On to step 7:
If we divide 0 by 12, we get 0 and a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 72519.0
If we take 0 away from 0, 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.

Going ahead to step 8:
12 can be fit into 0 0 times, resulting in a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 72519.0
If we take 0 away from 0, 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.

In conclusion, the division gives 72519.0 with a balance of 0.0.