We divide 84131731 by 215
The aim is to understand the frequency of 215 in 84131731.

Let's proceed to step 1:
The number 215 fits into 8 0 times, leaving a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Bring next digit (4) of the dividend behind the 8 and repeat the process: 84 / 215

Moving on to step 2:
215 can be fit into 84 0 times, resulting in a remainder of 84.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 84, we get 84.
Take the next digit (1) from the dividend and append it to 84, then repeat: 841 / 215

Advancing to step 3:
If we divide 841 by 215, we get 3 and a remainder of 196.
Put 3 as the next digit of the answer. 
Result so far: 3.0
Subtracting 645 from 841 leaves us with 196.
Grab the next digit (3) from the dividend, add it to 196, then carry on: 1963 / 215

On to step 4:
The number 215 fits into 1963 9 times, leaving a remainder of 28.
The number 9 becomes the next digit in our result. 
Result so far: 39.0
The remainder is 28 after subtracting 1935 from 1963.
Bring next digit (1) of the dividend behind the 28 and repeat the process: 281 / 215

Advancing to step 5:
If we divide 281 by 215, we get 1 and a remainder of 66.
Write down 1 as next digit of the result. 
Result so far: 391.0
The remainder is 66 after subtracting 215 from 281.
Fetch the next digit (7) from the dividend, attach it to 66 and continue: 667 / 215

Advancing to step 6:
When dividing 667 by 215, we get 3 with a remainder of 22.
Use 3 as the next digit of our solution. 
Result so far: 3913.0
The remainder is 22 after subtracting 645 from 667.
Fetch the next digit (3) from the dividend, attach it to 22 and continue: 223 / 215

On to step 7:
If we divide 223 by 215, we get 1 and a remainder of 8.
Write down 1 as next digit of the result. 
Result so far: 39131.0
If we subtract 215 from 223, we get 8.
Include the next digit (1) from the dividend after 8, then repeat: 81 / 215

Going ahead to step 8:
215 goes into 81 0 times with a remainder of 81.
The number 0 becomes the next digit in our result. 
Result so far: 391310.0
The remainder is 81 after subtracting 0 from 81.
Since there are no more digits in the dividend, we add a zero to the remainder making it 810, and continue the process.

Moving on to step 9:
215 can be fit into 810 3 times, resulting in a remainder of 165.
The next digit of our result is 3. 
Result so far: 391310.3
If we take 645 away from 810, we end up 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.

Let's proceed to step 10:
If we divide 1650 by 215, we get 7 and a remainder of 145.
Put 7 as the next digit of the answer. 
Result so far: 391310.37
Subtract 1505 from 1650 to get 145.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1450, and continue the process.

Advancing to step 11:
215 can be fit into 1450 6 times, resulting in a remainder of 160.
Put 6 as the next digit of the answer. 
Result so far: 391310.376
The remainder is 160 after subtracting 1290 from 1450.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

Going ahead to step 12:
The number 215 fits into 1600 7 times, leaving a remainder of 95.
Write down 7 as next digit of the result. 
Result so far: 391310.3767
Subtract 1505 from 1600 to get 95.
Since there are no more digits in the dividend, we add a zero to the remainder making it 950, and continue the process.

Moving on to step 13:
If we divide 950 by 215, we get 4 and a remainder of 90.
Write down 4 as next digit of the result. 
Result so far: 391310.37674
Deduct 860 from 950 and we're left with 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 900, and continue the process.

Step 14:
215 goes into 900 4 times with a remainder of 40.
Record the quotient 4 as the next digit in the result. 
Result so far: 391310.376744
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.

The final outcome is 391310.376744, with a leftover of 4e-06.