We look at the division of 428491 by 84 
Our goal is to divide 428491 by 84.

Moving on to step 1:
84 goes into 4 0 times with a remainder of 4.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 4 leaves us with 4.
Take the next digit (2) from the dividend and append it to 4, then repeat: 42 / 84

Going ahead to step 2:
84 can be fit into 42 0 times, resulting in a remainder of 42.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 42 and we're left with 42.
Fetch the next digit (8) from the dividend, attach it to 42 and continue: 428 / 84

On to step 3:
When dividing 428 by 84, we get 5 with a remainder of 8.
Record the quotient 5 as the next digit in the result. 
Result so far: 5.0
Deduct 420 from 428 and we're left with 8.
Take the next digit (4) from the dividend and append it to 8, then repeat: 84 / 84

Let's proceed to step 4:
The number 84 fits into 84 1 times, leaving a remainder of 0.
Put 1 as the next digit of the answer. 
Result so far: 51.0
If we subtract 84 from 84, we get 0.
Append the next digit (9) from the dividend to 0 and continue with: 9 / 84

On to step 5:
When dividing 9 by 84, we get 0 with a remainder of 9.
Use 0 as the next digit of our solution. 
Result so far: 510.0
Deduct 0 from 9 and we're left with 9.
Append the next digit (1) from the dividend to 9 and continue with: 91 / 84

Going ahead to step 6:
The number 84 fits into 91 1 times, leaving a remainder of 7.
The number 1 becomes the next digit in our result. 
Result so far: 5101.0
Subtracting 84 from 91 leaves us with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Moving on to step 7:
If we divide 70 by 84, we get 0 and a remainder of 70.
Write down 0 as next digit of the result. 
Result so far: 5101.0
Deduct 0 from 70 and we're left with 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

On to step 8:
84 can be fit into 700 8 times, resulting in a remainder of 28.
Write down 8 as next digit of the result. 
Result so far: 5101.08
If we subtract 672 from 700, we get 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

On to step 9:
280 divided by 84 is 3 with a remainder of 28.
Put 3 as the next digit of the answer. 
Result so far: 5101.083
If we subtract 252 from 280, we get 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Advancing to step 10:
84 can be fit into 280 3 times, resulting in a remainder of 28.
The number 3 becomes the next digit in our result. 
Result so far: 5101.0833
If we subtract 252 from 280, we get 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

In conclusion, the division gives 5101.0833 with a balance of 0.00028.