We divide 84270302 by 15
The aim is to understand the frequency of 15 in 84270302.

Advancing to step 1:
If we divide 8 by 15, we get 0 and a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Grab the next digit (4) from the dividend, add it to 8, then carry on: 84 / 15

Advancing to step 2:
84 divided by 15 is 5 with a remainder of 9.
The number 5 becomes the next digit in our result. 
Result so far: 5.0
Subtracting 75 from 84 leaves us with 9.
Grab the next digit (2) from the dividend, add it to 9, then carry on: 92 / 15

On to step 3:
15 goes into 92 6 times with a remainder of 2.
Put 6 as the next digit of the answer. 
Result so far: 56.0
If we subtract 90 from 92, we get 2.
Take the next digit (7) from the dividend and append it to 2, then repeat: 27 / 15

Step 4:
If we divide 27 by 15, we get 1 and a remainder of 12.
The number 1 becomes the next digit in our result. 
Result so far: 561.0
Subtract 15 from 27 to get 12.
Grab the next digit (0) from the dividend, add it to 12, then carry on: 120 / 15

On to step 5:
When dividing 120 by 15, we get 8 with a remainder of 0.
Write down 8 as next digit of the result. 
Result so far: 5618.0
If we subtract 120 from 120, we get 0.
Grab the next digit (3) from the dividend, add it to 0, then carry on: 3 / 15

On to step 6:
15 goes into 3 0 times with a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 56180.0
Subtract 0 from 3 to get 3.
Bring next digit (0) of the dividend behind the 3 and repeat the process: 30 / 15

Moving on to step 7:
15 can be fit into 30 2 times, resulting in a remainder of 0.
The number 2 becomes the next digit in our result. 
Result so far: 561802.0
The remainder is 0 after subtracting 30 from 30.
Include the next digit (2) from the dividend after 0, then repeat: 2 / 15

Going ahead to step 8:
15 can be fit into 2 0 times, resulting in a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 5618020.0
Deduct 0 from 2 and we're left with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Step 9:
When dividing 20 by 15, we get 1 with a remainder of 5.
The number 1 becomes the next digit in our result. 
Result so far: 5618020.1
Subtract 15 from 20 to get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Advancing to step 10:
15 goes into 50 3 times with a remainder of 5.
Use 3 as the next digit of our solution. 
Result so far: 5618020.13
Deduct 45 from 50 and we're left 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 11:
The number 15 fits into 50 3 times, leaving a remainder of 5.
Use 3 as the next digit of our solution. 
Result so far: 5618020.133
Subtracting 45 from 50 leaves us 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.

The final outcome is 5618020.133, with a leftover of 0.0005.