Let's divide 889641 by 15
The aim is to understand the frequency of 15 in 889641.

Advancing to step 1:
15 goes into 8 0 times with a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Take the next digit (8) from the dividend and append it to 8, then repeat: 88 / 15

Advancing to step 2:
15 goes into 88 5 times with a remainder of 13.
Put 5 as the next digit of the answer. 
Result so far: 5.0
Deduct 75 from 88 and we're left with 13.
Include the next digit (9) from the dividend after 13, then repeat: 139 / 15

On to step 3:
15 goes into 139 9 times with a remainder of 4.
Write down 9 as next digit of the result. 
Result so far: 59.0
If we take 135 away from 139, we end up with 4.
Fetch the next digit (6) from the dividend, attach it to 4 and continue: 46 / 15

Going ahead to step 4:
46 divided by 15 is 3 with a remainder of 1.
The number 3 becomes the next digit in our result. 
Result so far: 593.0
Subtracting 45 from 46 leaves us with 1.
Take the next digit (4) from the dividend and append it to 1, then repeat: 14 / 15

Step 5:
15 can be fit into 14 0 times, resulting in a remainder of 14.
The next digit of our result is 0. 
Result so far: 5930.0
If we subtract 0 from 14, we get 14.
Grab the next digit (1) from the dividend, add it to 14, then carry on: 141 / 15

Advancing to step 6:
The number 15 fits into 141 9 times, leaving a remainder of 6.
Use 9 as the next digit of our solution. 
Result so far: 59309.0
Deduct 135 from 141 and we're left 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.

Moving on 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: 59309.4
If we take 60 away from 60, we end up 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.

Advancing to step 8:
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: 59309.4
Deduct 0 from 0 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.

Going ahead 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: 59309.4
Deduct 0 from 0 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.

The final result is 59309.4 with a remainder of 0.0.