We look at the division of 155409 by 70 
Let's see how many times 70 fits into 155409.

Advancing to step 1:
1 divided by 70 is 0 with a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Bring next digit (5) of the dividend behind the 1 and repeat the process: 15 / 70

Advancing to step 2:
70 goes into 15 0 times with a remainder of 15.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 15, we end up with 15.
Grab the next digit (5) from the dividend, add it to 15, then carry on: 155 / 70

Moving on to step 3:
When dividing 155 by 70, we get 2 with a remainder of 15.
The next digit of our result is 2. 
Result so far: 2.0
The remainder is 15 after subtracting 140 from 155.
Fetch the next digit (4) from the dividend, attach it to 15 and continue: 154 / 70

On to step 4:
70 goes into 154 2 times with a remainder of 14.
The number 2 becomes the next digit in our result. 
Result so far: 22.0
The remainder is 14 after subtracting 140 from 154.
Include the next digit (0) from the dividend after 14, then repeat: 140 / 70

Step 5:
The number 70 fits into 140 2 times, leaving a remainder of 0.
The next digit of our result is 2. 
Result so far: 222.0
If we subtract 140 from 140, we get 0.
Bring next digit (9) of the dividend behind the 0 and repeat the process: 9 / 70

Going ahead to step 6:
The number 70 fits into 9 0 times, leaving a remainder of 9.
Use 0 as the next digit of our solution. 
Result so far: 2220.0
If we take 0 away from 9, we end up with 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Moving on to step 7:
90 divided by 70 is 1 with a remainder of 20.
The number 1 becomes the next digit in our result. 
Result so far: 2220.1
If we subtract 70 from 90, 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.

Going ahead to step 8:
The number 70 fits into 200 2 times, leaving a remainder of 60.
Record the quotient 2 as the next digit in the result. 
Result so far: 2220.12
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.

Going ahead to step 9:
When dividing 600 by 70, we get 8 with a remainder of 40.
Put 8 as the next digit of the answer. 
Result so far: 2220.128
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.

On to step 10:
When dividing 400 by 70, we get 5 with a remainder of 50.
Put 5 as the next digit of the answer. 
Result so far: 2220.1285
Subtract 350 from 400 to 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.

Advancing to step 11:
When dividing 500 by 70, we get 7 with a remainder of 10.
Put 7 as the next digit of the answer. 
Result so far: 2220.12857
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.

On to step 12:
70 goes into 100 1 times with a remainder of 30.
Use 1 as the next digit of our solution. 
Result so far: 2220.128571
The remainder is 30 after subtracting 70 from 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Advancing to step 13:
If we divide 300 by 70, we get 4 and a remainder of 20.
Write down 4 as next digit of the result. 
Result so far: 2220.1285714
If we take 280 away from 300, we end up with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

On to step 14:
200 divided by 70 is 2 with a remainder of 60.
Write down 2 as next digit of the result. 
Result so far: 2220.12857142
If we subtract 140 from 200, we get 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

The final outcome is 2220.12857142, with a leftover of 6e-08.