Let's divide 79874809 by 391
Let's see how many times 391 fits into 79874809.

Step 1:
391 can be fit into 7 0 times, resulting in a remainder of 7.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 7, we end up with 7.
Append the next digit (9) from the dividend to 7 and continue with: 79 / 391

Let's proceed to step 2:
391 can be fit into 79 0 times, resulting in a remainder of 79.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 79, we end up with 79.
Bring next digit (8) of the dividend behind the 79 and repeat the process: 798 / 391

Let's proceed to step 3:
391 can be fit into 798 2 times, resulting in a remainder of 16.
Write down 2 as next digit of the result. 
Result so far: 2.0
If we take 782 away from 798, we end up with 16.
Fetch the next digit (7) from the dividend, attach it to 16 and continue: 167 / 391

Moving on to step 4:
391 can be fit into 167 0 times, resulting in a remainder of 167.
Use 0 as the next digit of our solution. 
Result so far: 20.0
Subtracting 0 from 167 leaves us with 167.
Take the next digit (4) from the dividend and append it to 167, then repeat: 1674 / 391

Let's proceed to step 5:
391 goes into 1674 4 times with a remainder of 110.
Write down 4 as next digit of the result. 
Result so far: 204.0
Subtract 1564 from 1674 to get 110.
Fetch the next digit (8) from the dividend, attach it to 110 and continue: 1108 / 391

Let's proceed to step 6:
The number 391 fits into 1108 2 times, leaving a remainder of 326.
The next digit of our result is 2. 
Result so far: 2042.0
If we subtract 782 from 1108, we get 326.
Append the next digit (0) from the dividend to 326 and continue with: 3260 / 391

Step 7:
If we divide 3260 by 391, we get 8 and a remainder of 132.
Put 8 as the next digit of the answer. 
Result so far: 20428.0
If we take 3128 away from 3260, we end up with 132.
Take the next digit (9) from the dividend and append it to 132, then repeat: 1329 / 391

Step 8:
When dividing 1329 by 391, we get 3 with a remainder of 156.
Put 3 as the next digit of the answer. 
Result so far: 204283.0
If we subtract 1173 from 1329, we get 156.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1560, and continue the process.

On to step 9:
1560 divided by 391 is 3 with a remainder of 387.
The number 3 becomes the next digit in our result. 
Result so far: 204283.3
If we subtract 1173 from 1560, we get 387.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3870, and continue the process.

On to step 10:
If we divide 3870 by 391, we get 9 and a remainder of 351.
The number 9 becomes the next digit in our result. 
Result so far: 204283.39
Deduct 3519 from 3870 and we're left with 351.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3510, and continue the process.

Advancing to step 11:
If we divide 3510 by 391, we get 8 and a remainder of 382.
Put 8 as the next digit of the answer. 
Result so far: 204283.398
Deduct 3128 from 3510 and we're left with 382.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3820, and continue the process.

Step 12:
If we divide 3820 by 391, we get 9 and a remainder of 301.
Write down 9 as next digit of the result. 
Result so far: 204283.3989
The remainder is 301 after subtracting 3519 from 3820.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3010, and continue the process.

Going ahead to step 13:
391 goes into 3010 7 times with a remainder of 273.
Write down 7 as next digit of the result. 
Result so far: 204283.39897
If we subtract 2737 from 3010, we get 273.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2730, and continue the process.

Let's proceed to step 14:
391 goes into 2730 6 times with a remainder of 384.
Record the quotient 6 as the next digit in the result. 
Result so far: 204283.398976
Subtract 2346 from 2730 to get 384.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3840, and continue the process.

Going ahead to step 15:
3840 divided by 391 is 9 with a remainder of 321.
The next digit of our result is 9. 
Result so far: 204283.3989769
Subtracting 3519 from 3840 leaves us with 321.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3210, and continue the process.

Let's proceed to step 16:
391 goes into 3210 8 times with a remainder of 82.
The number 8 becomes the next digit in our result. 
Result so far: 204283.39897698
If we subtract 3128 from 3210, we get 82.
Since there are no more digits in the dividend, we add a zero to the remainder making it 820, and continue the process.

The final result is 204283.39897698 with a remainder of 8.2e-08.