We're dividing 428709 by 84 
We want to figure out the number of times 428709 can be divided by 84.

Advancing to step 1:
The number 84 fits into 4 0 times, leaving a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 4 and we're left with 4.
Take the next digit (2) from the dividend and append it to 4, then repeat: 42 / 84

Let's proceed to step 2:
If we divide 42 by 84, we get 0 and a remainder of 42.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 42, we end up with 42.
Take the next digit (8) from the dividend and append it to 42, then repeat: 428 / 84

Going ahead to step 3:
The number 84 fits into 428 5 times, leaving a remainder of 8.
The number 5 becomes the next digit in our result. 
Result so far: 5.0
Subtracting 420 from 428 leaves us with 8.
Bring next digit (7) of the dividend behind the 8 and repeat the process: 87 / 84

Step 4:
84 goes into 87 1 times with a remainder of 3.
Put 1 as the next digit of the answer. 
Result so far: 51.0
Subtract 84 from 87 to get 3.
Append the next digit (0) from the dividend to 3 and continue with: 30 / 84

Going ahead to step 5:
When dividing 30 by 84, we get 0 with a remainder of 30.
Record the quotient 0 as the next digit in the result. 
Result so far: 510.0
If we subtract 0 from 30, we get 30.
Append the next digit (9) from the dividend to 30 and continue with: 309 / 84

Going ahead to step 6:
84 can be fit into 309 3 times, resulting in a remainder of 57.
Write down 3 as next digit of the result. 
Result so far: 5103.0
Subtract 252 from 309 to get 57.
Since there are no more digits in the dividend, we add a zero to the remainder making it 570, and continue the process.

On to step 7:
84 can be fit into 570 6 times, resulting in a remainder of 66.
Record the quotient 6 as the next digit in the result. 
Result so far: 5103.6
If we subtract 504 from 570, we get 66.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

Let's proceed to step 8:
The number 84 fits into 660 7 times, leaving a remainder of 72.
Write down 7 as next digit of the result. 
Result so far: 5103.67
Subtracting 588 from 660 leaves us with 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

Moving on to step 9:
84 can be fit into 720 8 times, resulting in a remainder of 48.
Record the quotient 8 as the next digit in the result. 
Result so far: 5103.678
Subtract 672 from 720 to get 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Let's proceed to step 10:
480 divided by 84 is 5 with a remainder of 60.
Record the quotient 5 as the next digit in the result. 
Result so far: 5103.6785
If we take 420 away from 480, we end up with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Advancing to step 11:
The number 84 fits into 600 7 times, leaving a remainder of 12.
Put 7 as the next digit of the answer. 
Result so far: 5103.67857
If we take 588 away from 600, we end up with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Let's proceed to step 12:
The number 84 fits into 120 1 times, leaving a remainder of 36.
The next digit of our result is 1. 
Result so far: 5103.678571
Subtracting 84 from 120 leaves us with 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Step 13:
84 can be fit into 360 4 times, resulting in a remainder of 24.
The next digit of our result is 4. 
Result so far: 5103.6785714
If we take 336 away from 360, we end up with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Step 14:
84 can be fit into 240 2 times, resulting in a remainder of 72.
Use 2 as the next digit of our solution. 
Result so far: 5103.67857142
If we subtract 168 from 240, we get 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

After the division, we end up with 5103.67857142 and a remainder of 7.2e-08.