We're dividing 1246890 by 18 
We want to divide 1246890 by 18.

Advancing to step 1:
18 can be fit into 1 0 times, resulting in a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Fetch the next digit (2) from the dividend, attach it to 1 and continue: 12 / 18

Advancing to step 2:
When dividing 12 by 18, we get 0 with a remainder of 12.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 12 after subtracting 0 from 12.
Bring next digit (4) of the dividend behind the 12 and repeat the process: 124 / 18

On to step 3:
When dividing 124 by 18, we get 6 with a remainder of 16.
Write down 6 as next digit of the result. 
Result so far: 6.0
If we subtract 108 from 124, we get 16.
Take the next digit (6) from the dividend and append it to 16, then repeat: 166 / 18

Advancing to step 4:
166 divided by 18 is 9 with a remainder of 4.
Record the quotient 9 as the next digit in the result. 
Result so far: 69.0
Subtracting 162 from 166 leaves us with 4.
Grab the next digit (8) from the dividend, add it to 4, then carry on: 48 / 18

Let's proceed to step 5:
48 divided by 18 is 2 with a remainder of 12.
Put 2 as the next digit of the answer. 
Result so far: 692.0
Subtracting 36 from 48 leaves us with 12.
Fetch the next digit (9) from the dividend, attach it to 12 and continue: 129 / 18

Moving on to step 6:
When dividing 129 by 18, we get 7 with a remainder of 3.
Record the quotient 7 as the next digit in the result. 
Result so far: 6927.0
Deduct 126 from 129 and we're left with 3.
Grab the next digit (0) from the dividend, add it to 3, then carry on: 30 / 18

On to step 7:
If we divide 30 by 18, we get 1 and a remainder of 12.
The next digit of our result is 1. 
Result so far: 69271.0
Subtract 18 from 30 to get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Step 8:
18 can be fit into 120 6 times, resulting in a remainder of 12.
Put 6 as the next digit of the answer. 
Result so far: 69271.6
The remainder is 12 after subtracting 108 from 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Step 9:
The number 18 fits into 120 6 times, leaving a remainder of 12.
The next digit of our result is 6. 
Result so far: 69271.66
If we take 108 away from 120, we end up with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

The final result is 69271.66 with a remainder of 0.012.