85385305 ÷ 289 
We want to figure out the number of times 85385305 can be divided by 289.

Advancing to step 1:
If we divide 8 by 289, we get 0 and a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Bring next digit (5) of the dividend behind the 8 and repeat the process: 85 / 289

Advancing to step 2:
When dividing 85 by 289, we get 0 with a remainder of 85.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 85 and we're left with 85.
Bring next digit (3) of the dividend behind the 85 and repeat the process: 853 / 289

Let's proceed to step 3:
When dividing 853 by 289, we get 2 with a remainder of 275.
Use 2 as the next digit of our solution. 
Result so far: 2.0
Subtract 578 from 853 to get 275.
Take the next digit (8) from the dividend and append it to 275, then repeat: 2758 / 289

Advancing to step 4:
If we divide 2758 by 289, we get 9 and a remainder of 157.
The number 9 becomes the next digit in our result. 
Result so far: 29.0
Deduct 2601 from 2758 and we're left with 157.
Take the next digit (5) from the dividend and append it to 157, then repeat: 1575 / 289

Advancing to step 5:
289 goes into 1575 5 times with a remainder of 130.
Write down 5 as next digit of the result. 
Result so far: 295.0
If we subtract 1445 from 1575, we get 130.
Bring next digit (3) of the dividend behind the 130 and repeat the process: 1303 / 289

Going ahead to step 6:
289 goes into 1303 4 times with a remainder of 147.
Record the quotient 4 as the next digit in the result. 
Result so far: 2954.0
Subtract 1156 from 1303 to get 147.
Bring next digit (0) of the dividend behind the 147 and repeat the process: 1470 / 289

Let's proceed to step 7:
289 goes into 1470 5 times with a remainder of 25.
Put 5 as the next digit of the answer. 
Result so far: 29545.0
The remainder is 25 after subtracting 1445 from 1470.
Take the next digit (5) from the dividend and append it to 25, then repeat: 255 / 289

Advancing to step 8:
When dividing 255 by 289, we get 0 with a remainder of 255.
Write down 0 as next digit of the result. 
Result so far: 295450.0
Deduct 0 from 255 and we're left with 255.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2550, and continue the process.

Advancing to step 9:
If we divide 2550 by 289, we get 8 and a remainder of 238.
The next digit of our result is 8. 
Result so far: 295450.8
If we subtract 2312 from 2550, we get 238.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2380, and continue the process.

On to step 10:
If we divide 2380 by 289, we get 8 and a remainder of 68.
Put 8 as the next digit of the answer. 
Result so far: 295450.88
Subtract 2312 from 2380 to get 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

The final result is 295450.88 with a remainder of 0.068.