We divide 59221269 by 15
The aim is to understand the frequency of 15 in 59221269.

Step 1:
15 goes into 5 0 times with a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 5 after subtracting 0 from 5.
Take the next digit (9) from the dividend and append it to 5, then repeat: 59 / 15

Moving on to step 2:
When dividing 59 by 15, we get 3 with a remainder of 14.
Write down 3 as next digit of the result. 
Result so far: 3.0
The remainder is 14 after subtracting 45 from 59.
Bring next digit (2) of the dividend behind the 14 and repeat the process: 142 / 15

Advancing to step 3:
The number 15 fits into 142 9 times, leaving a remainder of 7.
Use 9 as the next digit of our solution. 
Result so far: 39.0
Subtract 135 from 142 to get 7.
Bring next digit (2) of the dividend behind the 7 and repeat the process: 72 / 15

Advancing to step 4:
15 can be fit into 72 4 times, resulting in a remainder of 12.
Record the quotient 4 as the next digit in the result. 
Result so far: 394.0
If we take 60 away from 72, we end up with 12.
Include the next digit (1) from the dividend after 12, then repeat: 121 / 15

Going ahead to step 5:
15 can be fit into 121 8 times, resulting in a remainder of 1.
The number 8 becomes the next digit in our result. 
Result so far: 3948.0
The remainder is 1 after subtracting 120 from 121.
Take the next digit (2) from the dividend and append it to 1, then repeat: 12 / 15

Going ahead to step 6:
If we divide 12 by 15, we get 0 and a remainder of 12.
Put 0 as the next digit of the answer. 
Result so far: 39480.0
Subtract 0 from 12 to get 12.
Fetch the next digit (6) from the dividend, attach it to 12 and continue: 126 / 15

Let's proceed to step 7:
When dividing 126 by 15, we get 8 with a remainder of 6.
Record the quotient 8 as the next digit in the result. 
Result so far: 394808.0
If we take 120 away from 126, we end up with 6.
Take the next digit (9) from the dividend and append it to 6, then repeat: 69 / 15

On to step 8:
69 divided by 15 is 4 with a remainder of 9.
Use 4 as the next digit of our solution. 
Result so far: 3948084.0
Deduct 60 from 69 and we're left with 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Going ahead to step 9:
The number 15 fits into 90 6 times, leaving a remainder of 0.
Use 6 as the next digit of our solution. 
Result so far: 3948084.6
Subtracting 90 from 90 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Let's proceed to step 10:
15 goes into 0 0 times with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 3948084.6
Subtract 0 from 0 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Let's proceed to step 11:
When dividing 0 by 15, we get 0 with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 3948084.6
Subtract 0 from 0 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

After the division, we end up with 3948084.6 and a remainder of 0.0.