We divide 389187 by 84
We want to figure out the number of times 389187 can be divided by 84.

Moving on to step 1:
84 goes into 3 0 times with a remainder of 3.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 3, we end up with 3.
Bring next digit (8) of the dividend behind the 3 and repeat the process: 38 / 84

Advancing to step 2:
38 divided by 84 is 0 with a remainder of 38.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 38 leaves us with 38.
Take the next digit (9) from the dividend and append it to 38, then repeat: 389 / 84

On to step 3:
If we divide 389 by 84, we get 4 and a remainder of 53.
The number 4 becomes the next digit in our result. 
Result so far: 4.0
The remainder is 53 after subtracting 336 from 389.
Grab the next digit (1) from the dividend, add it to 53, then carry on: 531 / 84

Advancing to step 4:
The number 84 fits into 531 6 times, leaving a remainder of 27.
The number 6 becomes the next digit in our result. 
Result so far: 46.0
Subtracting 504 from 531 leaves us with 27.
Fetch the next digit (8) from the dividend, attach it to 27 and continue: 278 / 84

Step 5:
If we divide 278 by 84, we get 3 and a remainder of 26.
The next digit of our result is 3. 
Result so far: 463.0
If we subtract 252 from 278, we get 26.
Fetch the next digit (7) from the dividend, attach it to 26 and continue: 267 / 84

Advancing to step 6:
If we divide 267 by 84, we get 3 and a remainder of 15.
The number 3 becomes the next digit in our result. 
Result so far: 4633.0
Subtract 252 from 267 to get 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 7:
When dividing 150 by 84, we get 1 with a remainder of 66.
The number 1 becomes the next digit in our result. 
Result so far: 4633.1
The remainder is 66 after subtracting 84 from 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

Advancing to step 8:
The number 84 fits into 660 7 times, leaving a remainder of 72.
Use 7 as the next digit of our solution. 
Result so far: 4633.17
Deduct 588 from 660 and we're left 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 goes into 720 8 times with a remainder of 48.
Use 8 as the next digit of our solution. 
Result so far: 4633.178
The remainder is 48 after subtracting 672 from 720.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Advancing to step 10:
If we divide 480 by 84, we get 5 and a remainder of 60.
Record the quotient 5 as the next digit in the result. 
Result so far: 4633.1785
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.

On to step 11:
600 divided by 84 is 7 with a remainder of 12.
Put 7 as the next digit of the answer. 
Result so far: 4633.17857
Subtract 588 from 600 to get 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:
84 can be fit into 120 1 times, resulting in a remainder of 36.
The number 1 becomes the next digit in our result. 
Result so far: 4633.178571
If we subtract 84 from 120, we get 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Advancing to step 13:
If we divide 360 by 84, we get 4 and a remainder of 24.
Use 4 as the next digit of our solution. 
Result so far: 4633.1785714
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.

On to step 14:
If we divide 240 by 84, we get 2 and a remainder of 72.
Record the quotient 2 as the next digit in the result. 
Result so far: 4633.17857142
Deduct 168 from 240 and we're left 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.

The final outcome is 4633.17857142, with a leftover of 7.2e-08.