We look at the division of 21276143 by 715 
The aim is to understand the frequency of 715 in 21276143.

Going ahead to step 1:
If we divide 2 by 715, we get 0 and a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 2 to get 2.
Include the next digit (1) from the dividend after 2, then repeat: 21 / 715

Advancing to step 2:
When dividing 21 by 715, we get 0 with a remainder of 21.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 21 after subtracting 0 from 21.
Include the next digit (2) from the dividend after 21, then repeat: 212 / 715

Going ahead to step 3:
212 divided by 715 is 0 with a remainder of 212.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 212 to get 212.
Bring next digit (7) of the dividend behind the 212 and repeat the process: 2127 / 715

Going ahead to step 4:
715 can be fit into 2127 2 times, resulting in a remainder of 697.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
Subtract 1430 from 2127 to get 697.
Include the next digit (6) from the dividend after 697, then repeat: 6976 / 715

Moving on to step 5:
6976 divided by 715 is 9 with a remainder of 541.
The next digit of our result is 9. 
Result so far: 29.0
Deduct 6435 from 6976 and we're left with 541.
Append the next digit (1) from the dividend to 541 and continue with: 5411 / 715

Going ahead to step 6:
715 can be fit into 5411 7 times, resulting in a remainder of 406.
The number 7 becomes the next digit in our result. 
Result so far: 297.0
If we take 5005 away from 5411, we end up with 406.
Fetch the next digit (4) from the dividend, attach it to 406 and continue: 4064 / 715

Step 7:
When dividing 4064 by 715, we get 5 with a remainder of 489.
Write down 5 as next digit of the result. 
Result so far: 2975.0
If we subtract 3575 from 4064, we get 489.
Grab the next digit (3) from the dividend, add it to 489, then carry on: 4893 / 715

Let's proceed to step 8:
If we divide 4893 by 715, we get 6 and a remainder of 603.
Write down 6 as next digit of the result. 
Result so far: 29756.0
Subtract 4290 from 4893 to get 603.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6030, and continue the process.

Advancing to step 9:
If we divide 6030 by 715, we get 8 and a remainder of 310.
Write down 8 as next digit of the result. 
Result so far: 29756.8
If we subtract 5720 from 6030, we get 310.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3100, and continue the process.

Let's proceed to step 10:
715 can be fit into 3100 4 times, resulting in a remainder of 240.
The next digit of our result is 4. 
Result so far: 29756.84
If we take 2860 away from 3100, we end up with 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2400, and continue the process.

Going ahead to step 11:
If we divide 2400 by 715, we get 3 and a remainder of 255.
Use 3 as the next digit of our solution. 
Result so far: 29756.843
The remainder is 255 after subtracting 2145 from 2400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2550, and continue the process.

Advancing to step 12:
When dividing 2550 by 715, we get 3 with a remainder of 405.
The number 3 becomes the next digit in our result. 
Result so far: 29756.8433
If we take 2145 away from 2550, we end up with 405.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4050, and continue the process.

In conclusion, the division gives 29756.8433 with a balance of 0.00405.