Let's divide 421265 by 84
Let's see how many times 84 fits into 421265.

Going ahead to step 1:
If we divide 4 by 84, we get 0 and a remainder of 4.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 4 to get 4.
Bring next digit (2) of the dividend behind the 4 and repeat the process: 42 / 84

Going ahead to step 2:
When dividing 42 by 84, we get 0 with a remainder of 42.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 42 after subtracting 0 from 42.
Append the next digit (1) from the dividend to 42 and continue with: 421 / 84

Let's proceed to step 3:
The number 84 fits into 421 5 times, leaving a remainder of 1.
Write down 5 as next digit of the result. 
Result so far: 5.0
Deduct 420 from 421 and we're left with 1.
Fetch the next digit (2) from the dividend, attach it to 1 and continue: 12 / 84

Let's proceed to step 4:
When dividing 12 by 84, we get 0 with a remainder of 12.
The number 0 becomes the next digit in our result. 
Result so far: 50.0
If we take 0 away from 12, we end up with 12.
Append the next digit (6) from the dividend to 12 and continue with: 126 / 84

Let's proceed to step 5:
126 divided by 84 is 1 with a remainder of 42.
Write down 1 as next digit of the result. 
Result so far: 501.0
Deduct 84 from 126 and we're left with 42.
Append the next digit (5) from the dividend to 42 and continue with: 425 / 84

Step 6:
84 can be fit into 425 5 times, resulting in a remainder of 5.
Record the quotient 5 as the next digit in the result. 
Result so far: 5015.0
Subtract 420 from 425 to get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Advancing to step 7:
When dividing 50 by 84, we get 0 with a remainder of 50.
Record the quotient 0 as the next digit in the result. 
Result so far: 5015.0
If we take 0 away from 50, we end up with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

On to step 8:
When dividing 500 by 84, we get 5 with a remainder of 80.
Use 5 as the next digit of our solution. 
Result so far: 5015.05
Subtract 420 from 500 to get 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:
84 can be fit into 800 9 times, resulting in a remainder of 44.
The next digit of our result is 9. 
Result so far: 5015.059
Subtract 756 from 800 to get 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Going ahead to step 10:
440 divided by 84 is 5 with a remainder of 20.
The number 5 becomes the next digit in our result. 
Result so far: 5015.0595
If we subtract 420 from 440, we get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Moving on to step 11:
200 divided by 84 is 2 with a remainder of 32.
Put 2 as the next digit of the answer. 
Result so far: 5015.05952
Deduct 168 from 200 and we're left with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Advancing to step 12:
The number 84 fits into 320 3 times, leaving a remainder of 68.
Record the quotient 3 as the next digit in the result. 
Result so far: 5015.059523
Subtracting 252 from 320 leaves us with 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Let's proceed to step 13:
When dividing 680 by 84, we get 8 with a remainder of 8.
Write down 8 as next digit of the result. 
Result so far: 5015.0595238
Subtracting 672 from 680 leaves us with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Advancing to step 14:
When dividing 80 by 84, we get 0 with a remainder of 80.
The number 0 becomes the next digit in our result. 
Result so far: 5015.0595238
If we take 0 away from 80, we end up 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.

Our division results in 5015.0595238 with a remaining 8e-08.