We look at the division of 309950 by 70 
We're looking to find how many times 70 goes into 309950.

Moving on to step 1:
70 can be fit into 3 0 times, resulting in 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.
Grab the next digit (0) from the dividend, add it to 3, then carry on: 30 / 70

On to step 2:
70 goes into 30 0 times with a remainder of 30.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 30 and we're left with 30.
Take the next digit (9) from the dividend and append it to 30, then repeat: 309 / 70

Step 3:
The number 70 fits into 309 4 times, leaving a remainder of 29.
Use 4 as the next digit of our solution. 
Result so far: 4.0
If we take 280 away from 309, we end up with 29.
Fetch the next digit (9) from the dividend, attach it to 29 and continue: 299 / 70

Going ahead to step 4:
When dividing 299 by 70, we get 4 with a remainder of 19.
Use 4 as the next digit of our solution. 
Result so far: 44.0
Deduct 280 from 299 and we're left with 19.
Fetch the next digit (5) from the dividend, attach it to 19 and continue: 195 / 70

Going ahead to step 5:
70 goes into 195 2 times with a remainder of 55.
Write down 2 as next digit of the result. 
Result so far: 442.0
Deduct 140 from 195 and we're left with 55.
Append the next digit (0) from the dividend to 55 and continue with: 550 / 70

Step 6:
70 goes into 550 7 times with a remainder of 60.
Use 7 as the next digit of our solution. 
Result so far: 4427.0
The remainder is 60 after subtracting 490 from 550.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Advancing to step 7:
When dividing 600 by 70, we get 8 with a remainder of 40.
Use 8 as the next digit of our solution. 
Result so far: 4427.8
Subtract 560 from 600 to get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Moving on to step 8:
70 goes into 400 5 times with a remainder of 50.
The next digit of our result is 5. 
Result so far: 4427.85
Subtracting 350 from 400 leaves us with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Moving on to step 9:
When dividing 500 by 70, we get 7 with a remainder of 10.
Use 7 as the next digit of our solution. 
Result so far: 4427.857
Subtract 490 from 500 to get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Going ahead to step 10:
100 divided by 70 is 1 with a remainder of 30.
Write down 1 as next digit of the result. 
Result so far: 4427.8571
Subtracting 70 from 100 leaves us with 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 11:
70 can be fit into 300 4 times, resulting in a remainder of 20.
The number 4 becomes the next digit in our result. 
Result so far: 4427.85714
If we subtract 280 from 300, we get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Moving on to step 12:
70 can be fit into 200 2 times, resulting in a remainder of 60.
The number 2 becomes the next digit in our result. 
Result so far: 4427.857142
Subtracting 140 from 200 leaves us with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

On to step 13:
The number 70 fits into 600 8 times, leaving a remainder of 40.
Write down 8 as next digit of the result. 
Result so far: 4427.8571428
Subtract 560 from 600 to get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Moving on to step 14:
400 divided by 70 is 5 with a remainder of 50.
Put 5 as the next digit of the answer. 
Result so far: 4427.85714285
If we subtract 350 from 400, we get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

The final outcome is 4427.85714285, with a leftover of 5e-08.