Let's divide 421458 by 85
Let's see how many times 85 fits into 421458.

Going ahead to step 1:
The number 85 fits into 4 0 times, leaving a remainder of 4.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 4 and we're left with 4.
Fetch the next digit (2) from the dividend, attach it to 4 and continue: 42 / 85

Going ahead to step 2:
85 can be fit into 42 0 times, resulting in a remainder of 42.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 42 after subtracting 0 from 42.
Grab the next digit (1) from the dividend, add it to 42, then carry on: 421 / 85

Going ahead to step 3:
When dividing 421 by 85, we get 4 with a remainder of 81.
Put 4 as the next digit of the answer. 
Result so far: 4.0
Subtracting 340 from 421 leaves us with 81.
Grab the next digit (4) from the dividend, add it to 81, then carry on: 814 / 85

Let's proceed to step 4:
If we divide 814 by 85, we get 9 and a remainder of 49.
Record the quotient 9 as the next digit in the result. 
Result so far: 49.0
Deduct 765 from 814 and we're left with 49.
Bring next digit (5) of the dividend behind the 49 and repeat the process: 495 / 85

Going ahead to step 5:
The number 85 fits into 495 5 times, leaving a remainder of 70.
Write down 5 as next digit of the result. 
Result so far: 495.0
Subtracting 425 from 495 leaves us with 70.
Grab the next digit (8) from the dividend, add it to 70, then carry on: 708 / 85

Moving on to step 6:
708 divided by 85 is 8 with a remainder of 28.
The number 8 becomes the next digit in our result. 
Result so far: 4958.0
Subtracting 680 from 708 leaves us with 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Moving on to step 7:
85 goes into 280 3 times with a remainder of 25.
Write down 3 as next digit of the result. 
Result so far: 4958.3
If we take 255 away from 280, we end up with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

On to step 8:
When dividing 250 by 85, we get 2 with a remainder of 80.
Write down 2 as next digit of the result. 
Result so far: 4958.32
Subtracting 170 from 250 leaves us 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.

Going ahead to step 9:
When dividing 800 by 85, we get 9 with a remainder of 35.
The next digit of our result is 9. 
Result so far: 4958.329
If we subtract 765 from 800, we get 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

On to step 10:
85 goes into 350 4 times with a remainder of 10.
Write down 4 as next digit of the result. 
Result so far: 4958.3294
If we take 340 away from 350, we end up 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.

Advancing to step 11:
85 goes into 100 1 times with a remainder of 15.
Record the quotient 1 as the next digit in the result. 
Result so far: 4958.32941
Deduct 85 from 100 and we're left 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.

Step 12:
85 can be fit into 150 1 times, resulting in a remainder of 65.
Write down 1 as next digit of the result. 
Result so far: 4958.329411
If we subtract 85 from 150, we get 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 quotient of the division is 4958.329411, and the remainder is 6.5e-06.