12990915 divided by 890 
We're looking to find how many times 890 goes into 12990915.

On to step 1:
1 divided by 890 is 0 with a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Take the next digit (2) from the dividend and append it to 1, then repeat: 12 / 890

Let's proceed to step 2:
The number 890 fits into 12 0 times, leaving a remainder of 12.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 12 to get 12.
Include the next digit (9) from the dividend after 12, then repeat: 129 / 890

Advancing to step 3:
When dividing 129 by 890, we get 0 with a remainder of 129.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 129 leaves us with 129.
Take the next digit (9) from the dividend and append it to 129, then repeat: 1299 / 890

Advancing to step 4:
890 can be fit into 1299 1 times, resulting in a remainder of 409.
Use 1 as the next digit of our solution. 
Result so far: 1.0
The remainder is 409 after subtracting 890 from 1299.
Append the next digit (0) from the dividend to 409 and continue with: 4090 / 890

Going ahead to step 5:
890 can be fit into 4090 4 times, resulting in a remainder of 530.
Write down 4 as next digit of the result. 
Result so far: 14.0
Subtract 3560 from 4090 to get 530.
Take the next digit (9) from the dividend and append it to 530, then repeat: 5309 / 890

Moving on to step 6:
5309 divided by 890 is 5 with a remainder of 859.
Use 5 as the next digit of our solution. 
Result so far: 145.0
Deduct 4450 from 5309 and we're left with 859.
Include the next digit (1) from the dividend after 859, then repeat: 8591 / 890

On to step 7:
If we divide 8591 by 890, we get 9 and a remainder of 581.
Record the quotient 9 as the next digit in the result. 
Result so far: 1459.0
Deduct 8010 from 8591 and we're left with 581.
Take the next digit (5) from the dividend and append it to 581, then repeat: 5815 / 890

Step 8:
When dividing 5815 by 890, we get 6 with a remainder of 475.
The number 6 becomes the next digit in our result. 
Result so far: 14596.0
Subtract 5340 from 5815 to get 475.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4750, and continue the process.

Going ahead to step 9:
The number 890 fits into 4750 5 times, leaving a remainder of 300.
Put 5 as the next digit of the answer. 
Result so far: 14596.5
If we take 4450 away from 4750, we end up with 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3000, and continue the process.

Advancing to step 10:
If we divide 3000 by 890, we get 3 and a remainder of 330.
Put 3 as the next digit of the answer. 
Result so far: 14596.53
If we take 2670 away from 3000, we end up with 330.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3300, and continue the process.

On to step 11:
890 goes into 3300 3 times with a remainder of 630.
The next digit of our result is 3. 
Result so far: 14596.533
Subtract 2670 from 3300 to get 630.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6300, and continue the process.

In conclusion, the division gives 14596.533 with a balance of 0.063.