3977628 divided by 520 
Let's see how many times 520 fits into 3977628.

Let's proceed to step 1:
The number 520 fits into 3 0 times, leaving a remainder of 3.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 3 and we're left with 3.
Include the next digit (9) from the dividend after 3, then repeat: 39 / 520

Let's proceed to step 2:
When dividing 39 by 520, we get 0 with a remainder of 39.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 39 leaves us with 39.
Take the next digit (7) from the dividend and append it to 39, then repeat: 397 / 520

On to step 3:
397 divided by 520 is 0 with a remainder of 397.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 397 leaves us with 397.
Take the next digit (7) from the dividend and append it to 397, then repeat: 3977 / 520

Advancing to step 4:
3977 divided by 520 is 7 with a remainder of 337.
Use 7 as the next digit of our solution. 
Result so far: 7.0
Subtract 3640 from 3977 to get 337.
Bring next digit (6) of the dividend behind the 337 and repeat the process: 3376 / 520

On to step 5:
520 goes into 3376 6 times with a remainder of 256.
Record the quotient 6 as the next digit in the result. 
Result so far: 76.0
Deduct 3120 from 3376 and we're left with 256.
Grab the next digit (2) from the dividend, add it to 256, then carry on: 2562 / 520

Going ahead to step 6:
520 can be fit into 2562 4 times, resulting in a remainder of 482.
Record the quotient 4 as the next digit in the result. 
Result so far: 764.0
If we subtract 2080 from 2562, we get 482.
Include the next digit (8) from the dividend after 482, then repeat: 4828 / 520

On to step 7:
520 goes into 4828 9 times with a remainder of 148.
The number 9 becomes the next digit in our result. 
Result so far: 7649.0
Subtract 4680 from 4828 to get 148.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1480, and continue the process.

Moving on to step 8:
520 goes into 1480 2 times with a remainder of 440.
Use 2 as the next digit of our solution. 
Result so far: 7649.2
Subtracting 1040 from 1480 leaves us with 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 9:
520 goes into 4400 8 times with a remainder of 240.
Use 8 as the next digit of our solution. 
Result so far: 7649.28
If we subtract 4160 from 4400, we get 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2400, and continue the process.

On to step 10:
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: 7649.284
Deduct 2080 from 2400 and we're left 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.

Let's proceed to step 11:
3200 divided by 520 is 6 with a remainder of 80.
The next digit of our result is 6. 
Result so far: 7649.2846
Subtract 3120 from 3200 to get 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Step 12:
800 divided by 520 is 1 with a remainder of 280.
Write down 1 as next digit of the result. 
Result so far: 7649.28461
Subtracting 520 from 800 leaves us with 280.
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 13:
520 can be fit into 2800 5 times, resulting in a remainder of 200.
The number 5 becomes the next digit in our result. 
Result so far: 7649.284615
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.

Step 14:
The number 520 fits into 2000 3 times, leaving a remainder of 440.
Write down 3 as next digit of the result. 
Result so far: 7649.2846153
Deduct 1560 from 2000 and we're left with 440.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4400, and continue the process.

Let's proceed to step 15:
If we divide 4400 by 520, we get 8 and a remainder of 240.
Record the quotient 8 as the next digit in the result. 
Result so far: 7649.28461538
Subtract 4160 from 4400 to get 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2400, and continue the process.

The final outcome is 7649.28461538, with a leftover of 2.4e-07.