77078158 ÷ 345 
We want to figure out the number of times 77078158 can be divided by 345.

On to step 1:
7 divided by 345 is 0 with a remainder of 7.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 7 after subtracting 0 from 7.
Fetch the next digit (7) from the dividend, attach it to 7 and continue: 77 / 345

Going ahead to step 2:
The number 345 fits into 77 0 times, leaving a remainder of 77.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 77 to get 77.
Grab the next digit (0) from the dividend, add it to 77, then carry on: 770 / 345

Moving on to step 3:
The number 345 fits into 770 2 times, leaving a remainder of 80.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
Subtracting 690 from 770 leaves us with 80.
Grab the next digit (7) from the dividend, add it to 80, then carry on: 807 / 345

Advancing to step 4:
345 goes into 807 2 times with a remainder of 117.
Put 2 as the next digit of the answer. 
Result so far: 22.0
If we take 690 away from 807, we end up with 117.
Grab the next digit (8) from the dividend, add it to 117, then carry on: 1178 / 345

Moving on to step 5:
1178 divided by 345 is 3 with a remainder of 143.
Use 3 as the next digit of our solution. 
Result so far: 223.0
Subtracting 1035 from 1178 leaves us with 143.
Include the next digit (1) from the dividend after 143, then repeat: 1431 / 345

Going ahead to step 6:
345 goes into 1431 4 times with a remainder of 51.
The next digit of our result is 4. 
Result so far: 2234.0
Deduct 1380 from 1431 and we're left with 51.
Append the next digit (5) from the dividend to 51 and continue with: 515 / 345

Advancing to step 7:
If we divide 515 by 345, we get 1 and a remainder of 170.
Record the quotient 1 as the next digit in the result. 
Result so far: 22341.0
Subtract 345 from 515 to get 170.
Fetch the next digit (8) from the dividend, attach it to 170 and continue: 1708 / 345

Moving on to step 8:
345 can be fit into 1708 4 times, resulting in a remainder of 328.
The number 4 becomes the next digit in our result. 
Result so far: 223414.0
Subtract 1380 from 1708 to get 328.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3280, and continue the process.

Going ahead to step 9:
When dividing 3280 by 345, we get 9 with a remainder of 175.
Put 9 as the next digit of the answer. 
Result so far: 223414.9
If we take 3105 away from 3280, we end up with 175.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1750, and continue the process.

Let's proceed to step 10:
When dividing 1750 by 345, we get 5 with a remainder of 25.
Record the quotient 5 as the next digit in the result. 
Result so far: 223414.95
If we take 1725 away from 1750, we end up with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

On to step 11:
345 can be fit into 250 0 times, resulting in a remainder of 250.
The number 0 becomes the next digit in our result. 
Result so far: 223414.95
Subtract 0 from 250 to get 250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2500, and continue the process.

Step 12:
2500 divided by 345 is 7 with a remainder of 85.
Put 7 as the next digit of the answer. 
Result so far: 223414.9507
Subtracting 2415 from 2500 leaves us with 85.
Since there are no more digits in the dividend, we add a zero to the remainder making it 850, and continue the process.

Let's proceed to step 13:
If we divide 850 by 345, we get 2 and a remainder of 160.
Put 2 as the next digit of the answer. 
Result so far: 223414.95072
The remainder is 160 after subtracting 690 from 850.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

Advancing to step 14:
345 can be fit into 1600 4 times, resulting in a remainder of 220.
The next digit of our result is 4. 
Result so far: 223414.950724
Subtract 1380 from 1600 to get 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2200, and continue the process.

Step 15:
345 goes into 2200 6 times with a remainder of 130.
The number 6 becomes the next digit in our result. 
Result so far: 223414.9507246
Subtracting 2070 from 2200 leaves us with 130.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1300, and continue the process.

Going ahead to step 16:
345 goes into 1300 3 times with a remainder of 265.
The next digit of our result is 3. 
Result so far: 223414.95072463
If we take 1035 away from 1300, we end up with 265.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2650, and continue the process.

The final result is 223414.95072463 with a remainder of 2.65e-07.