840406 divided by 70 
We want to divide 840406 by 70.

On to step 1:
70 can be fit into 8 0 times, resulting in a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Fetch the next digit (4) from the dividend, attach it to 8 and continue: 84 / 70

Advancing to step 2:
The number 70 fits into 84 1 times, leaving a remainder of 14.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
The remainder is 14 after subtracting 70 from 84.
Grab the next digit (0) from the dividend, add it to 14, then carry on: 140 / 70

On to step 3:
If we divide 140 by 70, we get 2 and a remainder of 0.
Write down 2 as next digit of the result. 
Result so far: 12.0
Subtract 140 from 140 to get 0.
Fetch the next digit (4) from the dividend, attach it to 0 and continue: 4 / 70

Moving on to step 4:
70 can be fit into 4 0 times, resulting in a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 120.0
The remainder is 4 after subtracting 0 from 4.
Bring next digit (0) of the dividend behind the 4 and repeat the process: 40 / 70

Moving on to step 5:
When dividing 40 by 70, we get 0 with a remainder of 40.
Use 0 as the next digit of our solution. 
Result so far: 1200.0
The remainder is 40 after subtracting 0 from 40.
Fetch the next digit (6) from the dividend, attach it to 40 and continue: 406 / 70

Advancing to step 6:
70 goes into 406 5 times with a remainder of 56.
Record the quotient 5 as the next digit in the result. 
Result so far: 12005.0
The remainder is 56 after subtracting 350 from 406.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

On to step 7:
When dividing 560 by 70, we get 8 with a remainder of 0.
The next digit of our result is 8. 
Result so far: 12005.8
If we subtract 560 from 560, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Let's proceed to step 8:
0 divided by 70 is 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 12005.8
If we subtract 0 from 0, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

On to step 9:
0 divided by 70 is 0 with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 12005.8
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

In conclusion, the division gives 12005.8 with a balance of 0.0.