We look at the division of 343321 by 70 
We're looking to find how many times 70 goes into 343321.

Step 1:
The number 70 fits into 3 0 times, leaving a remainder of 3.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 3 and we're left with 3.
Fetch the next digit (4) from the dividend, attach it to 3 and continue: 34 / 70

On to step 2:
70 goes into 34 0 times with a remainder of 34.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 34 after subtracting 0 from 34.
Grab the next digit (3) from the dividend, add it to 34, then carry on: 343 / 70

Moving on to step 3:
The number 70 fits into 343 4 times, leaving a remainder of 63.
Record the quotient 4 as the next digit in the result. 
Result so far: 4.0
If we take 280 away from 343, we end up with 63.
Fetch the next digit (3) from the dividend, attach it to 63 and continue: 633 / 70

Step 4:
633 divided by 70 is 9 with a remainder of 3.
Record the quotient 9 as the next digit in the result. 
Result so far: 49.0
The remainder is 3 after subtracting 630 from 633.
Fetch the next digit (2) from the dividend, attach it to 3 and continue: 32 / 70

On to step 5:
70 goes into 32 0 times with a remainder of 32.
Record the quotient 0 as the next digit in the result. 
Result so far: 490.0
Deduct 0 from 32 and we're left with 32.
Bring next digit (1) of the dividend behind the 32 and repeat the process: 321 / 70

On to step 6:
The number 70 fits into 321 4 times, leaving a remainder of 41.
Write down 4 as next digit of the result. 
Result so far: 4904.0
If we subtract 280 from 321, we get 41.
Since there are no more digits in the dividend, we add a zero to the remainder making it 410, and continue the process.

Advancing to step 7:
The number 70 fits into 410 5 times, leaving a remainder of 60.
Use 5 as the next digit of our solution. 
Result so far: 4904.5
If we take 350 away from 410, we end up 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.

Moving on to step 8:
When dividing 600 by 70, we get 8 with a remainder of 40.
The number 8 becomes the next digit in our result. 
Result so far: 4904.58
If we subtract 560 from 600, we 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.

Step 9:
The number 70 fits into 400 5 times, leaving a remainder of 50.
The number 5 becomes the next digit in our result. 
Result so far: 4904.585
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.

Let's proceed to step 10:
70 can be fit into 500 7 times, resulting in a remainder of 10.
Record the quotient 7 as the next digit in the result. 
Result so far: 4904.5857
Deduct 490 from 500 and we're left with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Let's proceed to step 11:
70 goes into 100 1 times with a remainder of 30.
The next digit of our result is 1. 
Result so far: 4904.58571
If we subtract 70 from 100, we get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

On to step 12:
70 goes into 300 4 times with a remainder of 20.
Use 4 as the next digit of our solution. 
Result so far: 4904.585714
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.

Let's proceed to step 13:
70 can be fit into 200 2 times, resulting in a remainder of 60.
Use 2 as the next digit of our solution. 
Result so far: 4904.5857142
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.

Moving on to step 14:
The number 70 fits into 600 8 times, leaving a remainder of 40.
Record the quotient 8 as the next digit in the result. 
Result so far: 4904.58571428
If we take 560 away from 600, we end up with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

The final outcome is 4904.58571428, with a leftover of 4e-08.