20628786 ÷ 515 
We want to figure out the number of times 20628786 can be divided by 515.

Going ahead to step 1:
2 divided by 515 is 0 with a remainder of 2.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 2 leaves us with 2.
Grab the next digit (0) from the dividend, add it to 2, then carry on: 20 / 515

Advancing to step 2:
515 can be fit into 20 0 times, resulting in a remainder of 20.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 20, we get 20.
Bring next digit (6) of the dividend behind the 20 and repeat the process: 206 / 515

On to step 3:
515 goes into 206 0 times with a remainder of 206.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 206, we end up with 206.
Append the next digit (2) from the dividend to 206 and continue with: 2062 / 515

Let's proceed to step 4:
515 can be fit into 2062 4 times, resulting in a remainder of 2.
Put 4 as the next digit of the answer. 
Result so far: 4.0
The remainder is 2 after subtracting 2060 from 2062.
Grab the next digit (8) from the dividend, add it to 2, then carry on: 28 / 515

On to step 5:
If we divide 28 by 515, we get 0 and a remainder of 28.
Record the quotient 0 as the next digit in the result. 
Result so far: 40.0
If we take 0 away from 28, we end up with 28.
Fetch the next digit (7) from the dividend, attach it to 28 and continue: 287 / 515

Let's proceed to step 6:
515 can be fit into 287 0 times, resulting in a remainder of 287.
The number 0 becomes the next digit in our result. 
Result so far: 400.0
If we take 0 away from 287, we end up with 287.
Grab the next digit (8) from the dividend, add it to 287, then carry on: 2878 / 515

Let's proceed to step 7:
515 goes into 2878 5 times with a remainder of 303.
Write down 5 as next digit of the result. 
Result so far: 4005.0
Deduct 2575 from 2878 and we're left with 303.
Include the next digit (6) from the dividend after 303, then repeat: 3036 / 515

Moving on to step 8:
When dividing 3036 by 515, we get 5 with a remainder of 461.
The number 5 becomes the next digit in our result. 
Result so far: 40055.0
Subtracting 2575 from 3036 leaves us with 461.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4610, and continue the process.

Let's proceed to step 9:
4610 divided by 515 is 8 with a remainder of 490.
Record the quotient 8 as the next digit in the result. 
Result so far: 40055.8
Subtracting 4120 from 4610 leaves us with 490.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4900, and continue the process.

Let's proceed to step 10:
4900 divided by 515 is 9 with a remainder of 265.
Use 9 as the next digit of our solution. 
Result so far: 40055.89
If we subtract 4635 from 4900, we get 265.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2650, and continue the process.

On to step 11:
515 can be fit into 2650 5 times, resulting in a remainder of 75.
Put 5 as the next digit of the answer. 
Result so far: 40055.895
Subtracting 2575 from 2650 leaves us with 75.
Since there are no more digits in the dividend, we add a zero to the remainder making it 750, and continue the process.

Let's proceed to step 12:
515 can be fit into 750 1 times, resulting in a remainder of 235.
The next digit of our result is 1. 
Result so far: 40055.8951
If we take 515 away from 750, we end up with 235.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2350, and continue the process.

Let's proceed to step 13:
When dividing 2350 by 515, we get 4 with a remainder of 290.
The number 4 becomes the next digit in our result. 
Result so far: 40055.89514
Subtract 2060 from 2350 to get 290.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2900, and continue the process.

Moving on to step 14:
If we divide 2900 by 515, we get 5 and a remainder of 325.
Record the quotient 5 as the next digit in the result. 
Result so far: 40055.895145
If we subtract 2575 from 2900, we get 325.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3250, and continue the process.

Let's proceed to step 15:
If we divide 3250 by 515, we get 6 and a remainder of 160.
Put 6 as the next digit of the answer. 
Result so far: 40055.8951456
Subtract 3090 from 3250 to get 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

On to step 16:
If we divide 1600 by 515, we get 3 and a remainder of 55.
The number 3 becomes the next digit in our result. 
Result so far: 40055.89514563
The remainder is 55 after subtracting 1545 from 1600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 550, and continue the process.

The final outcome is 40055.89514563, with a leftover of 5.5e-08.