We look at the division of 345144 by 77 
Let's see how many times 77 fits into 345144.

Advancing to step 1:
77 can be fit into 3 0 times, resulting in a remainder of 3.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 3, we get 3.
Take the next digit (4) from the dividend and append it to 3, then repeat: 34 / 77

Moving on to step 2:
34 divided by 77 is 0 with a remainder of 34.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 34, we end up with 34.
Include the next digit (5) from the dividend after 34, then repeat: 345 / 77

Let's proceed to step 3:
77 can be fit into 345 4 times, resulting in a remainder of 37.
Use 4 as the next digit of our solution. 
Result so far: 4.0
The remainder is 37 after subtracting 308 from 345.
Append the next digit (1) from the dividend to 37 and continue with: 371 / 77

On to step 4:
The number 77 fits into 371 4 times, leaving a remainder of 63.
Write down 4 as next digit of the result. 
Result so far: 44.0
The remainder is 63 after subtracting 308 from 371.
Include the next digit (4) from the dividend after 63, then repeat: 634 / 77

Advancing to step 5:
634 divided by 77 is 8 with a remainder of 18.
Record the quotient 8 as the next digit in the result. 
Result so far: 448.0
If we take 616 away from 634, we end up with 18.
Bring next digit (4) of the dividend behind the 18 and repeat the process: 184 / 77

Advancing to step 6:
When dividing 184 by 77, we get 2 with a remainder of 30.
Write down 2 as next digit of the result. 
Result so far: 4482.0
If we take 154 away from 184, we end up with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Advancing to step 7:
77 can be fit into 300 3 times, resulting in a remainder of 69.
The number 3 becomes the next digit in our result. 
Result so far: 4482.3
Deduct 231 from 300 and we're left with 69.
Since there are no more digits in the dividend, we add a zero to the remainder making it 690, and continue the process.

On to step 8:
77 goes into 690 8 times with a remainder of 74.
Use 8 as the next digit of our solution. 
Result so far: 4482.38
If we subtract 616 from 690, we get 74.
Since there are no more digits in the dividend, we add a zero to the remainder making it 740, and continue the process.

Going ahead to step 9:
The number 77 fits into 740 9 times, leaving a remainder of 47.
Put 9 as the next digit of the answer. 
Result so far: 4482.389
Subtracting 693 from 740 leaves us with 47.
Since there are no more digits in the dividend, we add a zero to the remainder making it 470, and continue the process.

Advancing to step 10:
If we divide 470 by 77, we get 6 and a remainder of 8.
The next digit of our result is 6. 
Result so far: 4482.3896
If we subtract 462 from 470, we get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

On to step 11:
77 can be fit into 80 1 times, resulting in a remainder of 3.
The number 1 becomes the next digit in our result. 
Result so far: 4482.38961
If we take 77 away from 80, we end up with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Let's proceed to step 12:
77 goes into 30 0 times with a remainder of 30.
Use 0 as the next digit of our solution. 
Result so far: 4482.38961
Subtracting 0 from 30 leaves us with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Advancing to step 13:
77 goes into 300 3 times with a remainder of 69.
Put 3 as the next digit of the answer. 
Result so far: 4482.3896103
If we subtract 231 from 300, we get 69.
Since there are no more digits in the dividend, we add a zero to the remainder making it 690, and continue the process.

Advancing to step 14:
77 goes into 690 8 times with a remainder of 74.
Write down 8 as next digit of the result. 
Result so far: 4482.38961038
Deduct 616 from 690 and we're left with 74.
Since there are no more digits in the dividend, we add a zero to the remainder making it 740, and continue the process.

The quotient of the division is 4482.38961038, and the remainder is 7.4e-08.