354990 ÷ 26 
We want to figure out the number of times 354990 can be divided by 26.

Going ahead to step 1:
3 divided by 26 is 0 with a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 3 leaves us with 3.
Bring next digit (5) of the dividend behind the 3 and repeat the process: 35 / 26

Moving on to step 2:
If we divide 35 by 26, we get 1 and a remainder of 9.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we subtract 26 from 35, we get 9.
Fetch the next digit (4) from the dividend, attach it to 9 and continue: 94 / 26

Going ahead to step 3:
26 can be fit into 94 3 times, resulting in a remainder of 16.
Use 3 as the next digit of our solution. 
Result so far: 13.0
If we take 78 away from 94, we end up with 16.
Append the next digit (9) from the dividend to 16 and continue with: 169 / 26

Moving on to step 4:
If we divide 169 by 26, we get 6 and a remainder of 13.
Use 6 as the next digit of our solution. 
Result so far: 136.0
Subtracting 156 from 169 leaves us with 13.
Include the next digit (9) from the dividend after 13, then repeat: 139 / 26

Step 5:
If we divide 139 by 26, we get 5 and a remainder of 9.
Put 5 as the next digit of the answer. 
Result so far: 1365.0
Deduct 130 from 139 and we're left with 9.
Append the next digit (0) from the dividend to 9 and continue with: 90 / 26

Going ahead to step 6:
26 can be fit into 90 3 times, resulting in a remainder of 12.
Record the quotient 3 as the next digit in the result. 
Result so far: 13653.0
If we subtract 78 from 90, we 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 7:
26 goes into 120 4 times with a remainder of 16.
The next digit of our result is 4. 
Result so far: 13653.4
If we take 104 away from 120, we end up with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

On to step 8:
When dividing 160 by 26, we get 6 with a remainder of 4.
The number 6 becomes the next digit in our result. 
Result so far: 13653.46
If we take 156 away from 160, we end up with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Step 9:
26 goes into 40 1 times with a remainder of 14.
The number 1 becomes the next digit in our result. 
Result so far: 13653.461
If we subtract 26 from 40, we get 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Going ahead to step 10:
26 goes into 140 5 times with a remainder of 10.
The number 5 becomes the next digit in our result. 
Result so far: 13653.4615
If we take 130 away from 140, we end up 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.

Going ahead to step 11:
26 goes into 100 3 times with a remainder of 22.
The next digit of our result is 3. 
Result so far: 13653.46153
The remainder is 22 after subtracting 78 from 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Moving on to step 12:
When dividing 220 by 26, we get 8 with a remainder of 12.
The next digit of our result is 8. 
Result so far: 13653.461538
The remainder is 12 after subtracting 208 from 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Going ahead to step 13:
If we divide 120 by 26, we get 4 and a remainder of 16.
The number 4 becomes the next digit in our result. 
Result so far: 13653.4615384
If we take 104 away from 120, we end up with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Advancing to step 14:
If we divide 160 by 26, we get 6 and a remainder of 4.
Use 6 as the next digit of our solution. 
Result so far: 13653.46153846
If we take 156 away from 160, we end up with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

The final outcome is 13653.46153846, with a leftover of 4e-09.