Let's divide 953601 by 15
The aim is to understand the frequency of 15 in 953601.

Going ahead to step 1:
When dividing 9 by 15, we get 0 with a remainder of 9.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 9 and we're left with 9.
Grab the next digit (5) from the dividend, add it to 9, then carry on: 95 / 15

Going ahead to step 2:
When dividing 95 by 15, we get 6 with a remainder of 5.
Write down 6 as next digit of the result. 
Result so far: 6.0
If we take 90 away from 95, we end up with 5.
Append the next digit (3) from the dividend to 5 and continue with: 53 / 15

On to step 3:
The number 15 fits into 53 3 times, leaving a remainder of 8.
Use 3 as the next digit of our solution. 
Result so far: 63.0
Subtract 45 from 53 to get 8.
Bring next digit (6) of the dividend behind the 8 and repeat the process: 86 / 15

On to step 4:
When dividing 86 by 15, we get 5 with a remainder of 11.
Record the quotient 5 as the next digit in the result. 
Result so far: 635.0
If we take 75 away from 86, we end up with 11.
Bring next digit (0) of the dividend behind the 11 and repeat the process: 110 / 15

Let's proceed to step 5:
When dividing 110 by 15, we get 7 with a remainder of 5.
The number 7 becomes the next digit in our result. 
Result so far: 6357.0
The remainder is 5 after subtracting 105 from 110.
Fetch the next digit (1) from the dividend, attach it to 5 and continue: 51 / 15

Moving on to step 6:
15 can be fit into 51 3 times, resulting in a remainder of 6.
The number 3 becomes the next digit in our result. 
Result so far: 63573.0
Subtracting 45 from 51 leaves us with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Advancing to step 7:
If we divide 60 by 15, we get 4 and a remainder of 0.
The next digit of our result is 4. 
Result so far: 63573.4
Subtract 60 from 60 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.

On to step 8:
If we divide 0 by 15, we get 0 and a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 63573.4
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.

Advancing to step 9:
When dividing 0 by 15, we get 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 63573.4
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 final outcome is 63573.4, with a leftover of 0.0.