We're dividing 1590974 by 520 
Let's see how many times 520 fits into 1590974.

Moving on to step 1:
520 can be fit into 1 0 times, resulting in a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Append the next digit (5) from the dividend to 1 and continue with: 15 / 520

Advancing to step 2:
The number 520 fits into 15 0 times, leaving a remainder of 15.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 15 and we're left with 15.
Take the next digit (9) from the dividend and append it to 15, then repeat: 159 / 520

Advancing to step 3:
When dividing 159 by 520, we get 0 with a remainder of 159.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 159 to get 159.
Fetch the next digit (0) from the dividend, attach it to 159 and continue: 1590 / 520

Moving on to step 4:
The number 520 fits into 1590 3 times, leaving a remainder of 30.
Record the quotient 3 as the next digit in the result. 
Result so far: 3.0
Deduct 1560 from 1590 and we're left with 30.
Fetch the next digit (9) from the dividend, attach it to 30 and continue: 309 / 520

On to step 5:
520 can be fit into 309 0 times, resulting in a remainder of 309.
Use 0 as the next digit of our solution. 
Result so far: 30.0
If we subtract 0 from 309, we get 309.
Fetch the next digit (7) from the dividend, attach it to 309 and continue: 3097 / 520

Step 6:
The number 520 fits into 3097 5 times, leaving a remainder of 497.
Put 5 as the next digit of the answer. 
Result so far: 305.0
Subtracting 2600 from 3097 leaves us with 497.
Include the next digit (4) from the dividend after 497, then repeat: 4974 / 520

Step 7:
If we divide 4974 by 520, we get 9 and a remainder of 294.
Use 9 as the next digit of our solution. 
Result so far: 3059.0
The remainder is 294 after subtracting 4680 from 4974.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2940, and continue the process.

Advancing to step 8:
520 can be fit into 2940 5 times, resulting in a remainder of 340.
Use 5 as the next digit of our solution. 
Result so far: 3059.5
Deduct 2600 from 2940 and we're left with 340.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3400, and continue the process.

Going ahead to step 9:
When dividing 3400 by 520, we get 6 with a remainder of 280.
Write down 6 as next digit of the result. 
Result so far: 3059.56
The remainder is 280 after subtracting 3120 from 3400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2800, and continue the process.

Let's proceed to step 10:
520 can be fit into 2800 5 times, resulting in a remainder of 200.
The next digit of our result is 5. 
Result so far: 3059.565
The remainder is 200 after subtracting 2600 from 2800.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

Moving on to step 11:
520 goes into 2000 3 times with a remainder of 440.
The number 3 becomes the next digit in our result. 
Result so far: 3059.5653
If we subtract 1560 from 2000, we get 440.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4400, and continue the process.

Moving on to step 12:
If we divide 4400 by 520, we get 8 and a remainder of 240.
Put 8 as the next digit of the answer. 
Result so far: 3059.56538
If we take 4160 away from 4400, we end up with 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2400, and continue the process.

Going ahead to step 13:
520 can be fit into 2400 4 times, resulting in a remainder of 320.
The next digit of our result is 4. 
Result so far: 3059.565384
Subtracting 2080 from 2400 leaves us with 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3200, and continue the process.

Step 14:
If we divide 3200 by 520, we get 6 and a remainder of 80.
Put 6 as the next digit of the answer. 
Result so far: 3059.5653846
Subtracting 3120 from 3200 leaves us with 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

On to step 15:
The number 520 fits into 800 1 times, leaving a remainder of 280.
Record the quotient 1 as the next digit in the result. 
Result so far: 3059.56538461
Subtract 520 from 800 to get 280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2800, and continue the process.

The final outcome is 3059.56538461, with a leftover of 2.8e-07.