We're dividing 343453 by 76 
We're looking to find how many times 76 goes into 343453.

On to step 1:
76 goes into 3 0 times with a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 3, we get 3.
Fetch the next digit (4) from the dividend, attach it to 3 and continue: 34 / 76

Moving on to step 2:
34 divided by 76 is 0 with a remainder of 34.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 34 leaves us with 34.
Append the next digit (3) from the dividend to 34 and continue with: 343 / 76

Advancing to step 3:
If we divide 343 by 76, we get 4 and a remainder of 39.
Use 4 as the next digit of our solution. 
Result so far: 4.0
If we take 304 away from 343, we end up with 39.
Take the next digit (4) from the dividend and append it to 39, then repeat: 394 / 76

Moving on to step 4:
76 can be fit into 394 5 times, resulting in a remainder of 14.
Use 5 as the next digit of our solution. 
Result so far: 45.0
If we subtract 380 from 394, we get 14.
Fetch the next digit (5) from the dividend, attach it to 14 and continue: 145 / 76

Advancing to step 5:
145 divided by 76 is 1 with a remainder of 69.
Record the quotient 1 as the next digit in the result. 
Result so far: 451.0
Subtracting 76 from 145 leaves us with 69.
Append the next digit (3) from the dividend to 69 and continue with: 693 / 76

Going ahead to step 6:
76 goes into 693 9 times with a remainder of 9.
Write down 9 as next digit of the result. 
Result so far: 4519.0
If we take 684 away from 693, we end up with 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Moving on to step 7:
The number 76 fits into 90 1 times, leaving a remainder of 14.
The number 1 becomes the next digit in our result. 
Result so far: 4519.1
If we take 76 away from 90, we end up with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

On to step 8:
When dividing 140 by 76, we get 1 with a remainder of 64.
Put 1 as the next digit of the answer. 
Result so far: 4519.11
The remainder is 64 after subtracting 76 from 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

The final result is 4519.11 with a remainder of 0.064.