79275778 ÷ 309 
We want to divide 79275778 by 309.

Advancing to step 1:
The number 309 fits into 7 0 times, leaving a remainder of 7.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 7 and we're left with 7.
Grab the next digit (9) from the dividend, add it to 7, then carry on: 79 / 309

Advancing to step 2:
If we divide 79 by 309, we get 0 and a remainder of 79.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 79 after subtracting 0 from 79.
Fetch the next digit (2) from the dividend, attach it to 79 and continue: 792 / 309

Advancing to step 3:
If we divide 792 by 309, we get 2 and a remainder of 174.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
If we take 618 away from 792, we end up with 174.
Fetch the next digit (7) from the dividend, attach it to 174 and continue: 1747 / 309

Advancing to step 4:
If we divide 1747 by 309, we get 5 and a remainder of 202.
Put 5 as the next digit of the answer. 
Result so far: 25.0
If we take 1545 away from 1747, we end up with 202.
Fetch the next digit (5) from the dividend, attach it to 202 and continue: 2025 / 309

Moving on to step 5:
2025 divided by 309 is 6 with a remainder of 171.
Record the quotient 6 as the next digit in the result. 
Result so far: 256.0
If we take 1854 away from 2025, we end up with 171.
Fetch the next digit (7) from the dividend, attach it to 171 and continue: 1717 / 309

Let's proceed to step 6:
If we divide 1717 by 309, we get 5 and a remainder of 172.
Write down 5 as next digit of the result. 
Result so far: 2565.0
The remainder is 172 after subtracting 1545 from 1717.
Bring next digit (7) of the dividend behind the 172 and repeat the process: 1727 / 309

Step 7:
309 goes into 1727 5 times with a remainder of 182.
Put 5 as the next digit of the answer. 
Result so far: 25655.0
Subtracting 1545 from 1727 leaves us with 182.
Take the next digit (8) from the dividend and append it to 182, then repeat: 1828 / 309

Let's proceed to step 8:
When dividing 1828 by 309, we get 5 with a remainder of 283.
Write down 5 as next digit of the result. 
Result so far: 256555.0
If we take 1545 away from 1828, we end up with 283.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2830, and continue the process.

Going ahead to step 9:
The number 309 fits into 2830 9 times, leaving a remainder of 49.
Use 9 as the next digit of our solution. 
Result so far: 256555.9
Subtracting 2781 from 2830 leaves us with 49.
Since there are no more digits in the dividend, we add a zero to the remainder making it 490, and continue the process.

Moving on to step 10:
309 can be fit into 490 1 times, resulting in a remainder of 181.
Write down 1 as next digit of the result. 
Result so far: 256555.91
Subtracting 309 from 490 leaves us with 181.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1810, and continue the process.

On to step 11:
309 goes into 1810 5 times with a remainder of 265.
Use 5 as the next digit of our solution. 
Result so far: 256555.915
If we take 1545 away from 1810, 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.

Advancing to step 12:
2650 divided by 309 is 8 with a remainder of 178.
Write down 8 as next digit of the result. 
Result so far: 256555.9158
If we subtract 2472 from 2650, we get 178.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1780, and continue the process.

Let's proceed to step 13:
309 can be fit into 1780 5 times, resulting in a remainder of 235.
Put 5 as the next digit of the answer. 
Result so far: 256555.91585
If we subtract 1545 from 1780, we get 235.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2350, and continue the process.

Advancing to step 14:
When dividing 2350 by 309, we get 7 with a remainder of 187.
Record the quotient 7 as the next digit in the result. 
Result so far: 256555.915857
Deduct 2163 from 2350 and we're left with 187.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1870, and continue the process.

Advancing to step 15:
309 goes into 1870 6 times with a remainder of 16.
Use 6 as the next digit of our solution. 
Result so far: 256555.9158576
Deduct 1854 from 1870 and we're left with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Moving on to step 16:
309 goes into 160 0 times with a remainder of 160.
Record the quotient 0 as the next digit in the result. 
Result so far: 256555.9158576
If we take 0 away from 160, we end up with 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

The final outcome is 256555.9158576, with a leftover of 1.6e-07.