We look at the division of 71310528 by 228 
The aim is to understand the frequency of 228 in 71310528.

Moving on to step 1:
The number 228 fits into 7 0 times, leaving a remainder of 7.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 7, we get 7.
Include the next digit (1) from the dividend after 7, then repeat: 71 / 228

Going ahead to step 2:
When dividing 71 by 228, we get 0 with a remainder of 71.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 71 leaves us with 71.
Grab the next digit (3) from the dividend, add it to 71, then carry on: 713 / 228

Let's proceed to step 3:
228 goes into 713 3 times with a remainder of 29.
Put 3 as the next digit of the answer. 
Result so far: 3.0
If we take 684 away from 713, we end up with 29.
Fetch the next digit (1) from the dividend, attach it to 29 and continue: 291 / 228

Advancing to step 4:
The number 228 fits into 291 1 times, leaving a remainder of 63.
The next digit of our result is 1. 
Result so far: 31.0
If we take 228 away from 291, we end up with 63.
Include the next digit (0) from the dividend after 63, then repeat: 630 / 228

Advancing to step 5:
When dividing 630 by 228, we get 2 with a remainder of 174.
Write down 2 as next digit of the result. 
Result so far: 312.0
Subtracting 456 from 630 leaves us with 174.
Grab the next digit (5) from the dividend, add it to 174, then carry on: 1745 / 228

Advancing to step 6:
The number 228 fits into 1745 7 times, leaving a remainder of 149.
Write down 7 as next digit of the result. 
Result so far: 3127.0
If we subtract 1596 from 1745, we get 149.
Append the next digit (2) from the dividend to 149 and continue with: 1492 / 228

Moving on to step 7:
228 can be fit into 1492 6 times, resulting in a remainder of 124.
Put 6 as the next digit of the answer. 
Result so far: 31276.0
If we take 1368 away from 1492, we end up with 124.
Append the next digit (8) from the dividend to 124 and continue with: 1248 / 228

Step 8:
1248 divided by 228 is 5 with a remainder of 108.
Record the quotient 5 as the next digit in the result. 
Result so far: 312765.0
If we take 1140 away from 1248, we end up with 108.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1080, and continue the process.

Going ahead to step 9:
If we divide 1080 by 228, we get 4 and a remainder of 168.
The number 4 becomes the next digit in our result. 
Result so far: 312765.4
Subtract 912 from 1080 to get 168.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1680, and continue the process.

Going ahead to step 10:
If we divide 1680 by 228, we get 7 and a remainder of 84.
The number 7 becomes the next digit in our result. 
Result so far: 312765.47
Subtract 1596 from 1680 to get 84.
Since there are no more digits in the dividend, we add a zero to the remainder making it 840, and continue the process.

Moving on to step 11:
If we divide 840 by 228, we get 3 and a remainder of 156.
Use 3 as the next digit of our solution. 
Result so far: 312765.473
Deduct 684 from 840 and we're left with 156.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1560, and continue the process.

Advancing to step 12:
The number 228 fits into 1560 6 times, leaving a remainder of 192.
The number 6 becomes the next digit in our result. 
Result so far: 312765.4736
If we subtract 1368 from 1560, we get 192.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1920, and continue the process.

Let's proceed to step 13:
If we divide 1920 by 228, we get 8 and a remainder of 96.
Record the quotient 8 as the next digit in the result. 
Result so far: 312765.47368
Subtracting 1824 from 1920 leaves us with 96.
Since there are no more digits in the dividend, we add a zero to the remainder making it 960, and continue the process.

Let's proceed to step 14:
The number 228 fits into 960 4 times, leaving a remainder of 48.
Use 4 as the next digit of our solution. 
Result so far: 312765.473684
Subtracting 912 from 960 leaves us with 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Let's proceed to step 15:
If we divide 480 by 228, we get 2 and a remainder of 24.
The next digit of our result is 2. 
Result so far: 312765.4736842
Deduct 456 from 480 and we're left with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Step 16:
228 goes into 240 1 times with a remainder of 12.
Put 1 as the next digit of the answer. 
Result so far: 312765.47368421
Subtract 228 from 240 to get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

After the division, we end up with 312765.47368421 and a remainder of 1.2e-08.