Let's divide 457890 by 85
We want to figure out the number of times 457890 can be divided by 85.

Step 1:
When dividing 4 by 85, we get 0 with a remainder of 4.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 4 to get 4.
Include the next digit (5) from the dividend after 4, then repeat: 45 / 85

Let's proceed to step 2:
85 goes into 45 0 times with a remainder of 45.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 45, we get 45.
Append the next digit (7) from the dividend to 45 and continue with: 457 / 85

Step 3:
If we divide 457 by 85, we get 5 and a remainder of 32.
The number 5 becomes the next digit in our result. 
Result so far: 5.0
The remainder is 32 after subtracting 425 from 457.
Bring next digit (8) of the dividend behind the 32 and repeat the process: 328 / 85

Moving on to step 4:
If we divide 328 by 85, we get 3 and a remainder of 73.
Use 3 as the next digit of our solution. 
Result so far: 53.0
If we subtract 255 from 328, we get 73.
Take the next digit (9) from the dividend and append it to 73, then repeat: 739 / 85

On to step 5:
The number 85 fits into 739 8 times, leaving a remainder of 59.
Write down 8 as next digit of the result. 
Result so far: 538.0
Subtract 680 from 739 to get 59.
Append the next digit (0) from the dividend to 59 and continue with: 590 / 85

Advancing to step 6:
590 divided by 85 is 6 with a remainder of 80.
The next digit of our result is 6. 
Result so far: 5386.0
Deduct 510 from 590 and we're left with 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Let's proceed to step 7:
800 divided by 85 is 9 with a remainder of 35.
The number 9 becomes the next digit in our result. 
Result so far: 5386.9
The remainder is 35 after subtracting 765 from 800.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Let's proceed to step 8:
85 can be fit into 350 4 times, resulting in a remainder of 10.
The next digit of our result is 4. 
Result so far: 5386.94
Deduct 340 from 350 and we're left with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

On to step 9:
If we divide 100 by 85, we get 1 and a remainder of 15.
Record the quotient 1 as the next digit in the result. 
Result so far: 5386.941
If we take 85 away from 100, we end up 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.

On to step 10:
The number 85 fits into 150 1 times, leaving a remainder of 65.
Write down 1 as next digit of the result. 
Result so far: 5386.9411
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 5386.9411, with a leftover of 0.00065.