We're dividing 719877 by 15 
The aim is to understand the frequency of 15 in 719877.

Going ahead to step 1:
If we divide 7 by 15, we get 0 and a remainder of 7.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 7 and we're left with 7.
Bring next digit (1) of the dividend behind the 7 and repeat the process: 71 / 15

Advancing to step 2:
15 can be fit into 71 4 times, resulting in a remainder of 11.
Write down 4 as next digit of the result. 
Result so far: 4.0
Deduct 60 from 71 and we're left with 11.
Grab the next digit (9) from the dividend, add it to 11, then carry on: 119 / 15

On to step 3:
When dividing 119 by 15, we get 7 with a remainder of 14.
Use 7 as the next digit of our solution. 
Result so far: 47.0
Subtract 105 from 119 to get 14.
Grab the next digit (8) from the dividend, add it to 14, then carry on: 148 / 15

On to step 4:
15 can be fit into 148 9 times, resulting in a remainder of 13.
The number 9 becomes the next digit in our result. 
Result so far: 479.0
The remainder is 13 after subtracting 135 from 148.
Take the next digit (7) from the dividend and append it to 13, then repeat: 137 / 15

Step 5:
If we divide 137 by 15, we get 9 and a remainder of 2.
The number 9 becomes the next digit in our result. 
Result so far: 4799.0
If we take 135 away from 137, we end up with 2.
Bring next digit (7) of the dividend behind the 2 and repeat the process: 27 / 15

Advancing to step 6:
15 can be fit into 27 1 times, resulting in a remainder of 12.
Use 1 as the next digit of our solution. 
Result so far: 47991.0
The remainder is 12 after subtracting 15 from 27.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Let's proceed to step 7:
If we divide 120 by 15, we get 8 and a remainder of 0.
The number 8 becomes the next digit in our result. 
Result so far: 47991.8
Deduct 120 from 120 and we're left 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 8:
15 can be fit into 0 0 times, resulting in a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 47991.8
Subtracting 0 from 0 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.

Moving on to step 9:
When dividing 0 by 15, we get 0 with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 47991.8
Subtracting 0 from 0 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.

After the division, we end up with 47991.8 and a remainder of 0.0.