We look at the division of 629502 by 15 
The aim is to understand the frequency of 15 in 629502.

Advancing to step 1:
15 can be fit into 6 0 times, resulting in a remainder of 6.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Grab the next digit (2) from the dividend, add it to 6, then carry on: 62 / 15

Going ahead to step 2:
62 divided by 15 is 4 with a remainder of 2.
Use 4 as the next digit of our solution. 
Result so far: 4.0
Subtracting 60 from 62 leaves us with 2.
Grab the next digit (9) from the dividend, add it to 2, then carry on: 29 / 15

On to step 3:
When dividing 29 by 15, we get 1 with a remainder of 14.
Use 1 as the next digit of our solution. 
Result so far: 41.0
Deduct 15 from 29 and we're left with 14.
Take the next digit (5) from the dividend and append it to 14, then repeat: 145 / 15

Going ahead to step 4:
If we divide 145 by 15, we get 9 and a remainder of 10.
Put 9 as the next digit of the answer. 
Result so far: 419.0
If we take 135 away from 145, we end up with 10.
Bring next digit (0) of the dividend behind the 10 and repeat the process: 100 / 15

Step 5:
15 can be fit into 100 6 times, resulting in a remainder of 10.
Write down 6 as next digit of the result. 
Result so far: 4196.0
If we take 90 away from 100, we end up with 10.
Fetch the next digit (2) from the dividend, attach it to 10 and continue: 102 / 15

Going ahead to step 6:
15 can be fit into 102 6 times, resulting in a remainder of 12.
Use 6 as the next digit of our solution. 
Result so far: 41966.0
Deduct 90 from 102 and we're left with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Step 7:
If we divide 120 by 15, we get 8 and a remainder of 0.
Write down 8 as next digit of the result. 
Result so far: 41966.8
The remainder is 0 after subtracting 120 from 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Advancing to step 8:
0 divided by 15 is 0 with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 41966.8
If we subtract 0 from 0, we 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.

Step 9:
The number 15 fits into 0 0 times, leaving a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 41966.8
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.

The quotient of the division is 41966.8, and the remainder is 0.0.