We're dividing 300145 by 85 
Let's see how many times 85 fits into 300145.

Step 1:
3 divided by 85 is 0 with a remainder of 3.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 3 after subtracting 0 from 3.
Bring next digit (0) of the dividend behind the 3 and repeat the process: 30 / 85

Let's proceed to step 2:
30 divided by 85 is 0 with a remainder of 30.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 30 to get 30.
Bring next digit (0) of the dividend behind the 30 and repeat the process: 300 / 85

Step 3:
85 goes into 300 3 times with a remainder of 45.
Record the quotient 3 as the next digit in the result. 
Result so far: 3.0
If we subtract 255 from 300, we get 45.
Grab the next digit (1) from the dividend, add it to 45, then carry on: 451 / 85

On to step 4:
The number 85 fits into 451 5 times, leaving a remainder of 26.
Use 5 as the next digit of our solution. 
Result so far: 35.0
Subtracting 425 from 451 leaves us with 26.
Bring next digit (4) of the dividend behind the 26 and repeat the process: 264 / 85

Step 5:
85 can be fit into 264 3 times, resulting in a remainder of 9.
Use 3 as the next digit of our solution. 
Result so far: 353.0
If we subtract 255 from 264, we get 9.
Append the next digit (5) from the dividend to 9 and continue with: 95 / 85

Moving on to step 6:
95 divided by 85 is 1 with a remainder of 10.
Put 1 as the next digit of the answer. 
Result so far: 3531.0
If we subtract 85 from 95, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Step 7:
The number 85 fits into 100 1 times, leaving a remainder of 15.
Record the quotient 1 as the next digit in the result. 
Result so far: 3531.1
Subtracting 85 from 100 leaves us with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Advancing to step 8:
If we divide 150 by 85, we get 1 and a remainder of 65.
Put 1 as the next digit of the answer. 
Result so far: 3531.11
Subtracting 85 from 150 leaves us with 65.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

The final outcome is 3531.11, with a leftover of 0.065.