We look at the division of 309446 by 79 
We're looking to find how many times 79 goes into 309446.

Let's proceed to step 1:
The number 79 fits into 3 0 times, leaving a remainder of 3.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 3, we end up with 3.
Take the next digit (0) from the dividend and append it to 3, then repeat: 30 / 79

Step 2:
The number 79 fits into 30 0 times, leaving a remainder of 30.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 30, we get 30.
Append the next digit (9) from the dividend to 30 and continue with: 309 / 79

Moving on to step 3:
309 divided by 79 is 3 with a remainder of 72.
Use 3 as the next digit of our solution. 
Result so far: 3.0
Subtract 237 from 309 to get 72.
Append the next digit (4) from the dividend to 72 and continue with: 724 / 79

Advancing to step 4:
79 goes into 724 9 times with a remainder of 13.
The next digit of our result is 9. 
Result so far: 39.0
If we subtract 711 from 724, we get 13.
Fetch the next digit (4) from the dividend, attach it to 13 and continue: 134 / 79

On to step 5:
When dividing 134 by 79, we get 1 with a remainder of 55.
The number 1 becomes the next digit in our result. 
Result so far: 391.0
If we subtract 79 from 134, we get 55.
Take the next digit (6) from the dividend and append it to 55, then repeat: 556 / 79

Let's proceed to step 6:
556 divided by 79 is 7 with a remainder of 3.
Write down 7 as next digit of the result. 
Result so far: 3917.0
Subtract 553 from 556 to get 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Going ahead to step 7:
The number 79 fits into 30 0 times, leaving a remainder of 30.
The next digit of our result is 0. 
Result so far: 3917.0
The remainder is 30 after subtracting 0 from 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Let's proceed to step 8:
79 goes into 300 3 times with a remainder of 63.
Use 3 as the next digit of our solution. 
Result so far: 3917.03
The remainder is 63 after subtracting 237 from 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 630, and continue the process.

Let's proceed to step 9:
When dividing 630 by 79, we get 7 with a remainder of 77.
Write down 7 as next digit of the result. 
Result so far: 3917.037
Deduct 553 from 630 and we're left with 77.
Since there are no more digits in the dividend, we add a zero to the remainder making it 770, and continue the process.

Advancing to step 10:
If we divide 770 by 79, we get 9 and a remainder of 59.
The next digit of our result is 9. 
Result so far: 3917.0379
Deduct 711 from 770 and we're left with 59.
Since there are no more digits in the dividend, we add a zero to the remainder making it 590, and continue the process.

Going ahead to step 11:
If we divide 590 by 79, we get 7 and a remainder of 37.
Write down 7 as next digit of the result. 
Result so far: 3917.03797
If we subtract 553 from 590, we get 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

Advancing to step 12:
370 divided by 79 is 4 with a remainder of 54.
Record the quotient 4 as the next digit in the result. 
Result so far: 3917.037974
If we take 316 away from 370, we end up with 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

Going ahead to step 13:
When dividing 540 by 79, we get 6 with a remainder of 66.
Record the quotient 6 as the next digit in the result. 
Result so far: 3917.0379746
The remainder is 66 after subtracting 474 from 540.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

On to step 14:
When dividing 660 by 79, we get 8 with a remainder of 28.
Record the quotient 8 as the next digit in the result. 
Result so far: 3917.03797468
Subtract 632 from 660 to get 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

The final outcome is 3917.03797468, with a leftover of 2.8e-08.