2187759 ÷ 215 
The aim is to understand the frequency of 215 in 2187759.

On to step 1:
The number 215 fits into 2 0 times, leaving a remainder of 2.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 2, we get 2.
Include the next digit (1) from the dividend after 2, then repeat: 21 / 215

Advancing to step 2:
215 can be fit into 21 0 times, resulting in a remainder of 21.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 21 and we're left with 21.
Fetch the next digit (8) from the dividend, attach it to 21 and continue: 218 / 215

Let's proceed to step 3:
The number 215 fits into 218 1 times, leaving a remainder of 3.
Write down 1 as next digit of the result. 
Result so far: 1.0
Deduct 215 from 218 and we're left with 3.
Append the next digit (7) from the dividend to 3 and continue with: 37 / 215

On to step 4:
If we divide 37 by 215, we get 0 and a remainder of 37.
The next digit of our result is 0. 
Result so far: 10.0
If we take 0 away from 37, we end up with 37.
Bring next digit (7) of the dividend behind the 37 and repeat the process: 377 / 215

Going ahead to step 5:
If we divide 377 by 215, we get 1 and a remainder of 162.
Put 1 as the next digit of the answer. 
Result so far: 101.0
Deduct 215 from 377 and we're left with 162.
Bring next digit (5) of the dividend behind the 162 and repeat the process: 1625 / 215

Advancing to step 6:
The number 215 fits into 1625 7 times, leaving a remainder of 120.
Record the quotient 7 as the next digit in the result. 
Result so far: 1017.0
If we subtract 1505 from 1625, we get 120.
Fetch the next digit (9) from the dividend, attach it to 120 and continue: 1209 / 215

Moving on to step 7:
215 can be fit into 1209 5 times, resulting in a remainder of 134.
The number 5 becomes the next digit in our result. 
Result so far: 10175.0
Subtracting 1075 from 1209 leaves us with 134.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1340, and continue the process.

Let's proceed to step 8:
If we divide 1340 by 215, we get 6 and a remainder of 50.
Use 6 as the next digit of our solution. 
Result so far: 10175.6
Deduct 1290 from 1340 and we're left with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Let's proceed to step 9:
The number 215 fits into 500 2 times, leaving a remainder of 70.
The number 2 becomes the next digit in our result. 
Result so far: 10175.62
Subtract 430 from 500 to get 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Let's proceed to step 10:
700 divided by 215 is 3 with a remainder of 55.
The number 3 becomes the next digit in our result. 
Result so far: 10175.623
Subtracting 645 from 700 leaves us with 55.
Since there are no more digits in the dividend, we add a zero to the remainder making it 550, and continue the process.

On to step 11:
215 can be fit into 550 2 times, resulting in a remainder of 120.
The number 2 becomes the next digit in our result. 
Result so far: 10175.6232
The remainder is 120 after subtracting 430 from 550.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

Let's proceed to step 12:
215 can be fit into 1200 5 times, resulting in a remainder of 125.
The next digit of our result is 5. 
Result so far: 10175.62325
If we take 1075 away from 1200, we end up with 125.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1250, and continue the process.

Advancing to step 13:
1250 divided by 215 is 5 with a remainder of 175.
Put 5 as the next digit of the answer. 
Result so far: 10175.623255
Subtracting 1075 from 1250 leaves us with 175.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1750, and continue the process.

Our division results in 10175.623255 with a remaining 1.75e-05.