72456243 ÷ 777 
We want to figure out the number of times 72456243 can be divided by 777.

On to step 1:
The number 777 fits into 7 0 times, leaving a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 7 leaves us with 7.
Take the next digit (2) from the dividend and append it to 7, then repeat: 72 / 777

Let's proceed to step 2:
The number 777 fits into 72 0 times, leaving a remainder of 72.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 72, we get 72.
Fetch the next digit (4) from the dividend, attach it to 72 and continue: 724 / 777

On to step 3:
The number 777 fits into 724 0 times, leaving a remainder of 724.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 724, we get 724.
Take the next digit (5) from the dividend and append it to 724, then repeat: 7245 / 777

Advancing to step 4:
When dividing 7245 by 777, we get 9 with a remainder of 252.
Use 9 as the next digit of our solution. 
Result so far: 9.0
The remainder is 252 after subtracting 6993 from 7245.
Append the next digit (6) from the dividend to 252 and continue with: 2526 / 777

Going ahead to step 5:
2526 divided by 777 is 3 with a remainder of 195.
Put 3 as the next digit of the answer. 
Result so far: 93.0
If we take 2331 away from 2526, we end up with 195.
Fetch the next digit (2) from the dividend, attach it to 195 and continue: 1952 / 777

Advancing to step 6:
1952 divided by 777 is 2 with a remainder of 398.
Write down 2 as next digit of the result. 
Result so far: 932.0
Deduct 1554 from 1952 and we're left with 398.
Include the next digit (4) from the dividend after 398, then repeat: 3984 / 777

Going ahead to step 7:
3984 divided by 777 is 5 with a remainder of 99.
Write down 5 as next digit of the result. 
Result so far: 9325.0
The remainder is 99 after subtracting 3885 from 3984.
Take the next digit (3) from the dividend and append it to 99, then repeat: 993 / 777

Moving on to step 8:
The number 777 fits into 993 1 times, leaving a remainder of 216.
Put 1 as the next digit of the answer. 
Result so far: 93251.0
Deduct 777 from 993 and we're left with 216.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2160, and continue the process.

Let's proceed to step 9:
When dividing 2160 by 777, we get 2 with a remainder of 606.
Write down 2 as next digit of the result. 
Result so far: 93251.2
Subtract 1554 from 2160 to get 606.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6060, and continue the process.

Going ahead to step 10:
When dividing 6060 by 777, we get 7 with a remainder of 621.
Use 7 as the next digit of our solution. 
Result so far: 93251.27
Deduct 5439 from 6060 and we're left with 621.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6210, and continue the process.

On to step 11:
If we divide 6210 by 777, we get 7 and a remainder of 771.
The number 7 becomes the next digit in our result. 
Result so far: 93251.277
Subtracting 5439 from 6210 leaves us with 771.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7710, and continue the process.

The quotient of the division is 93251.277, and the remainder is 0.0771.