We look at the division of 770400 by 84 
We're looking to find how many times 84 goes into 770400.

On to step 1:
When dividing 7 by 84, we get 0 with a remainder of 7.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 7, we get 7.
Take the next digit (7) from the dividend and append it to 7, then repeat: 77 / 84

Let's proceed to step 2:
84 can be fit into 77 0 times, resulting in a remainder of 77.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 77 leaves us with 77.
Bring next digit (0) of the dividend behind the 77 and repeat the process: 770 / 84

On to step 3:
84 goes into 770 9 times with a remainder of 14.
Write down 9 as next digit of the result. 
Result so far: 9.0
The remainder is 14 after subtracting 756 from 770.
Bring next digit (4) of the dividend behind the 14 and repeat the process: 144 / 84

Let's proceed to step 4:
84 goes into 144 1 times with a remainder of 60.
Use 1 as the next digit of our solution. 
Result so far: 91.0
Subtract 84 from 144 to get 60.
Append the next digit (0) from the dividend to 60 and continue with: 600 / 84

Moving on to step 5:
84 goes into 600 7 times with a remainder of 12.
The number 7 becomes the next digit in our result. 
Result so far: 917.0
Subtracting 588 from 600 leaves us with 12.
Bring next digit (0) of the dividend behind the 12 and repeat the process: 120 / 84

Let's proceed to step 6:
84 goes into 120 1 times with a remainder of 36.
Record the quotient 1 as the next digit in the result. 
Result so far: 9171.0
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.

Let's proceed to step 7:
360 divided by 84 is 4 with a remainder of 24.
The next digit of our result is 4. 
Result so far: 9171.4
Deduct 336 from 360 and we're left 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 8:
If we divide 240 by 84, we get 2 and a remainder of 72.
Use 2 as the next digit of our solution. 
Result so far: 9171.42
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.

Advancing to step 9:
84 can be fit into 720 8 times, resulting in a remainder of 48.
Put 8 as the next digit of the answer. 
Result so far: 9171.428
If we subtract 672 from 720, we 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.

Advancing to step 10:
480 divided by 84 is 5 with a remainder of 60.
Write down 5 as next digit of the result. 
Result so far: 9171.4285
Subtract 420 from 480 to get 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Let's proceed to step 11:
The number 84 fits into 600 7 times, leaving a remainder of 12.
Write down 7 as next digit of the result. 
Result so far: 9171.42857
The remainder is 12 after subtracting 588 from 600.
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:
When dividing 120 by 84, we get 1 with a remainder of 36.
Use 1 as the next digit of our solution. 
Result so far: 9171.428571
If we take 84 away from 120, we end up 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.

Going ahead to step 13:
If we divide 360 by 84, we get 4 and a remainder of 24.
Put 4 as the next digit of the answer. 
Result so far: 9171.4285714
If we subtract 336 from 360, we get 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:
The number 84 fits into 240 2 times, leaving a remainder of 72.
Write down 2 as next digit of the result. 
Result so far: 9171.42857142
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.

After the division, we end up with 9171.42857142 and a remainder of 7.2e-08.