We're dividing 61818049 by 215 
The aim is to understand the frequency of 215 in 61818049.

Let's proceed to step 1:
If we divide 6 by 215, we get 0 and a remainder of 6.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Bring next digit (1) of the dividend behind the 6 and repeat the process: 61 / 215

Going ahead to step 2:
If we divide 61 by 215, we get 0 and a remainder of 61.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 61 and we're left with 61.
Append the next digit (8) from the dividend to 61 and continue with: 618 / 215

Let's proceed to step 3:
215 goes into 618 2 times with a remainder of 188.
Use 2 as the next digit of our solution. 
Result so far: 2.0
The remainder is 188 after subtracting 430 from 618.
Take the next digit (1) from the dividend and append it to 188, then repeat: 1881 / 215

Going ahead to step 4:
1881 divided by 215 is 8 with a remainder of 161.
Use 8 as the next digit of our solution. 
Result so far: 28.0
Subtract 1720 from 1881 to get 161.
Include the next digit (8) from the dividend after 161, then repeat: 1618 / 215

Step 5:
If we divide 1618 by 215, we get 7 and a remainder of 113.
Put 7 as the next digit of the answer. 
Result so far: 287.0
The remainder is 113 after subtracting 1505 from 1618.
Fetch the next digit (0) from the dividend, attach it to 113 and continue: 1130 / 215

Advancing to step 6:
When dividing 1130 by 215, we get 5 with a remainder of 55.
Put 5 as the next digit of the answer. 
Result so far: 2875.0
If we take 1075 away from 1130, we end up with 55.
Fetch the next digit (4) from the dividend, attach it to 55 and continue: 554 / 215

Let's proceed to step 7:
215 goes into 554 2 times with a remainder of 124.
The number 2 becomes the next digit in our result. 
Result so far: 28752.0
If we take 430 away from 554, we end up with 124.
Fetch the next digit (9) from the dividend, attach it to 124 and continue: 1249 / 215

On to step 8:
215 goes into 1249 5 times with a remainder of 174.
Record the quotient 5 as the next digit in the result. 
Result so far: 287525.0
Deduct 1075 from 1249 and we're left with 174.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1740, and continue the process.

Advancing to step 9:
1740 divided by 215 is 8 with a remainder of 20.
The number 8 becomes the next digit in our result. 
Result so far: 287525.8
The remainder is 20 after subtracting 1720 from 1740.
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 10:
The number 215 fits into 200 0 times, leaving a remainder of 200.
Put 0 as the next digit of the answer. 
Result so far: 287525.8
Subtracting 0 from 200 leaves us with 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

Step 11:
2000 divided by 215 is 9 with a remainder of 65.
Put 9 as the next digit of the answer. 
Result so far: 287525.809
The remainder is 65 after subtracting 1935 from 2000.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

On to step 12:
650 divided by 215 is 3 with a remainder of 5.
Use 3 as the next digit of our solution. 
Result so far: 287525.8093
If we take 645 away from 650, we end up with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Step 13:
215 goes into 50 0 times with a remainder of 50.
Record the quotient 0 as the next digit in the result. 
Result so far: 287525.8093
If we subtract 0 from 50, we get 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 14:
When dividing 500 by 215, we get 2 with a remainder of 70.
Use 2 as the next digit of our solution. 
Result so far: 287525.809302
Deduct 430 from 500 and we're left with 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Step 15:
When dividing 700 by 215, we get 3 with a remainder of 55.
The number 3 becomes the next digit in our result. 
Result so far: 287525.8093023
Subtract 645 from 700 to get 55.
Since there are no more digits in the dividend, we add a zero to the remainder making it 550, and continue the process.

Advancing to step 16:
550 divided by 215 is 2 with a remainder of 120.
The next digit of our result is 2. 
Result so far: 287525.80930232
If we subtract 430 from 550, we get 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

The quotient of the division is 287525.80930232, and the remainder is 1.2e-07.