We look at the division of 8943370 by 215 
The aim is to understand the frequency of 215 in 8943370.

Going ahead to step 1:
When dividing 8 by 215, we get 0 with a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Include the next digit (9) from the dividend after 8, then repeat: 89 / 215

Going ahead to step 2:
If we divide 89 by 215, we get 0 and a remainder of 89.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 89 leaves us with 89.
Include the next digit (4) from the dividend after 89, then repeat: 894 / 215

Going ahead to step 3:
When dividing 894 by 215, we get 4 with a remainder of 34.
Use 4 as the next digit of our solution. 
Result so far: 4.0
Subtracting 860 from 894 leaves us with 34.
Take the next digit (3) from the dividend and append it to 34, then repeat: 343 / 215

Advancing to step 4:
When dividing 343 by 215, we get 1 with a remainder of 128.
The number 1 becomes the next digit in our result. 
Result so far: 41.0
Deduct 215 from 343 and we're left with 128.
Bring next digit (3) of the dividend behind the 128 and repeat the process: 1283 / 215

Step 5:
If we divide 1283 by 215, we get 5 and a remainder of 208.
Write down 5 as next digit of the result. 
Result so far: 415.0
Subtract 1075 from 1283 to get 208.
Take the next digit (7) from the dividend and append it to 208, then repeat: 2087 / 215

Moving on to step 6:
2087 divided by 215 is 9 with a remainder of 152.
Write down 9 as next digit of the result. 
Result so far: 4159.0
Subtract 1935 from 2087 to get 152.
Append the next digit (0) from the dividend to 152 and continue with: 1520 / 215

Let's proceed to step 7:
When dividing 1520 by 215, we get 7 with a remainder of 15.
Put 7 as the next digit of the answer. 
Result so far: 41597.0
Subtract 1505 from 1520 to get 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Moving on to step 8:
When dividing 150 by 215, we get 0 with a remainder of 150.
Use 0 as the next digit of our solution. 
Result so far: 41597.0
Subtracting 0 from 150 leaves us with 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1500, and continue the process.

Step 9:
If we divide 1500 by 215, we get 6 and a remainder of 210.
Write down 6 as next digit of the result. 
Result so far: 41597.06
Subtracting 1290 from 1500 leaves us with 210.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2100, and continue the process.

On to step 10:
2100 divided by 215 is 9 with a remainder of 165.
Put 9 as the next digit of the answer. 
Result so far: 41597.069
Subtracting 1935 from 2100 leaves us with 165.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1650, and continue the process.

Step 11:
The number 215 fits into 1650 7 times, leaving a remainder of 145.
The next digit of our result is 7. 
Result so far: 41597.0697
The remainder is 145 after subtracting 1505 from 1650.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1450, and continue the process.

Let's proceed to step 12:
The number 215 fits into 1450 6 times, leaving a remainder of 160.
The number 6 becomes the next digit in our result. 
Result so far: 41597.06976
Deduct 1290 from 1450 and we're left with 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

Let's proceed to step 13:
1600 divided by 215 is 7 with a remainder of 95.
Record the quotient 7 as the next digit in the result. 
Result so far: 41597.069767
The remainder is 95 after subtracting 1505 from 1600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 950, and continue the process.

On to step 14:
215 goes into 950 4 times with a remainder of 90.
Record the quotient 4 as the next digit in the result. 
Result so far: 41597.0697674
Subtract 860 from 950 to get 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 900, and continue the process.

Advancing to step 15:
215 can be fit into 900 4 times, resulting in a remainder of 40.
Use 4 as the next digit of our solution. 
Result so far: 41597.06976744
Subtract 860 from 900 to get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Our division results in 41597.06976744 with a remaining 4e-08.