We're dividing 154209 by 65 
We want to figure out the number of times 154209 can be divided by 65.

On to step 1:
When dividing 1 by 65, we get 0 with a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Append the next digit (5) from the dividend to 1 and continue with: 15 / 65

On to step 2:
15 divided by 65 is 0 with a remainder of 15.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 15 to get 15.
Append the next digit (4) from the dividend to 15 and continue with: 154 / 65

Step 3:
65 goes into 154 2 times with a remainder of 24.
Use 2 as the next digit of our solution. 
Result so far: 2.0
Subtract 130 from 154 to get 24.
Grab the next digit (2) from the dividend, add it to 24, then carry on: 242 / 65

Going ahead to step 4:
65 goes into 242 3 times with a remainder of 47.
The number 3 becomes the next digit in our result. 
Result so far: 23.0
If we subtract 195 from 242, we get 47.
Take the next digit (0) from the dividend and append it to 47, then repeat: 470 / 65

Moving on to step 5:
65 goes into 470 7 times with a remainder of 15.
Put 7 as the next digit of the answer. 
Result so far: 237.0
Deduct 455 from 470 and we're left with 15.
Bring next digit (9) of the dividend behind the 15 and repeat the process: 159 / 65

Let's proceed to step 6:
65 goes into 159 2 times with a remainder of 29.
Put 2 as the next digit of the answer. 
Result so far: 2372.0
Subtract 130 from 159 to get 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

Advancing to step 7:
65 can be fit into 290 4 times, resulting in a remainder of 30.
Use 4 as the next digit of our solution. 
Result so far: 2372.4
Subtract 260 from 290 to get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Going ahead to step 8:
65 goes into 300 4 times with a remainder of 40.
The next digit of our result is 4. 
Result so far: 2372.44
Subtract 260 from 300 to get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

The final result is 2372.44 with a remainder of 0.04.