85139961 ÷ 393 
We're looking to find how many times 393 goes into 85139961.

Step 1:
393 can be fit into 8 0 times, resulting in a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Append the next digit (5) from the dividend to 8 and continue with: 85 / 393

Step 2:
85 divided by 393 is 0 with a remainder of 85.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 85, we end up with 85.
Include the next digit (1) from the dividend after 85, then repeat: 851 / 393

Moving on to step 3:
The number 393 fits into 851 2 times, leaving a remainder of 65.
Use 2 as the next digit of our solution. 
Result so far: 2.0
If we take 786 away from 851, we end up with 65.
Grab the next digit (3) from the dividend, add it to 65, then carry on: 653 / 393

On to step 4:
393 goes into 653 1 times with a remainder of 260.
Use 1 as the next digit of our solution. 
Result so far: 21.0
If we take 393 away from 653, we end up with 260.
Append the next digit (9) from the dividend to 260 and continue with: 2609 / 393

Let's proceed to step 5:
When dividing 2609 by 393, we get 6 with a remainder of 251.
Put 6 as the next digit of the answer. 
Result so far: 216.0
The remainder is 251 after subtracting 2358 from 2609.
Grab the next digit (9) from the dividend, add it to 251, then carry on: 2519 / 393

Step 6:
393 goes into 2519 6 times with a remainder of 161.
The number 6 becomes the next digit in our result. 
Result so far: 2166.0
The remainder is 161 after subtracting 2358 from 2519.
Grab the next digit (6) from the dividend, add it to 161, then carry on: 1616 / 393

Step 7:
The number 393 fits into 1616 4 times, leaving a remainder of 44.
The next digit of our result is 4. 
Result so far: 21664.0
Deduct 1572 from 1616 and we're left with 44.
Take the next digit (1) from the dividend and append it to 44, then repeat: 441 / 393

Going ahead to step 8:
When dividing 441 by 393, we get 1 with a remainder of 48.
Write down 1 as next digit of the result. 
Result so far: 216641.0
Deduct 393 from 441 and we're left with 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

On to step 9:
393 goes into 480 1 times with a remainder of 87.
The number 1 becomes the next digit in our result. 
Result so far: 216641.1
Subtract 393 from 480 to get 87.
Since there are no more digits in the dividend, we add a zero to the remainder making it 870, and continue the process.

Going ahead to step 10:
If we divide 870 by 393, we get 2 and a remainder of 84.
The next digit of our result is 2. 
Result so far: 216641.12
Subtracting 786 from 870 leaves us with 84.
Since there are no more digits in the dividend, we add a zero to the remainder making it 840, and continue the process.

Advancing to step 11:
When dividing 840 by 393, we get 2 with a remainder of 54.
The next digit of our result is 2. 
Result so far: 216641.122
If we take 786 away from 840, we end up with 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

The final outcome is 216641.122, with a leftover of 0.0054.