20301535 ÷ 315 
We're looking to find how many times 315 goes into 20301535.

Step 1:
If we divide 2 by 315, we get 0 and a remainder of 2.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 2 leaves us with 2.
Bring next digit (0) of the dividend behind the 2 and repeat the process: 20 / 315

Moving on to step 2:
If we divide 20 by 315, we get 0 and a remainder of 20.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 20, we get 20.
Grab the next digit (3) from the dividend, add it to 20, then carry on: 203 / 315

Moving on to step 3:
The number 315 fits into 203 0 times, leaving a remainder of 203.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 203 after subtracting 0 from 203.
Take the next digit (0) from the dividend and append it to 203, then repeat: 2030 / 315

Advancing to step 4:
315 can be fit into 2030 6 times, resulting in a remainder of 140.
The number 6 becomes the next digit in our result. 
Result so far: 6.0
If we take 1890 away from 2030, we end up with 140.
Append the next digit (1) from the dividend to 140 and continue with: 1401 / 315

Going ahead to step 5:
1401 divided by 315 is 4 with a remainder of 141.
Write down 4 as next digit of the result. 
Result so far: 64.0
If we subtract 1260 from 1401, we get 141.
Take the next digit (5) from the dividend and append it to 141, then repeat: 1415 / 315

Step 6:
315 goes into 1415 4 times with a remainder of 155.
The number 4 becomes the next digit in our result. 
Result so far: 644.0
Subtract 1260 from 1415 to get 155.
Take the next digit (3) from the dividend and append it to 155, then repeat: 1553 / 315

Step 7:
The number 315 fits into 1553 4 times, leaving a remainder of 293.
Use 4 as the next digit of our solution. 
Result so far: 6444.0
Subtract 1260 from 1553 to get 293.
Append the next digit (5) from the dividend to 293 and continue with: 2935 / 315

Let's proceed to step 8:
When dividing 2935 by 315, we get 9 with a remainder of 100.
The next digit of our result is 9. 
Result so far: 64449.0
Subtract 2835 from 2935 to get 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

Let's proceed to step 9:
When dividing 1000 by 315, we get 3 with a remainder of 55.
Record the quotient 3 as the next digit in the result. 
Result so far: 64449.3
The remainder is 55 after subtracting 945 from 1000.
Since there are no more digits in the dividend, we add a zero to the remainder making it 550, and continue the process.

Let's proceed to step 10:
315 can be fit into 550 1 times, resulting in a remainder of 235.
The next digit of our result is 1. 
Result so far: 64449.31
Subtract 315 from 550 to get 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 11:
The number 315 fits into 2350 7 times, leaving a remainder of 145.
Use 7 as the next digit of our solution. 
Result so far: 64449.317
Subtracting 2205 from 2350 leaves us with 145.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1450, and continue the process.

Going ahead to step 12:
1450 divided by 315 is 4 with a remainder of 190.
Write down 4 as next digit of the result. 
Result so far: 64449.3174
If we subtract 1260 from 1450, we get 190.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1900, and continue the process.

Moving on to step 13:
315 can be fit into 1900 6 times, resulting in a remainder of 10.
The number 6 becomes the next digit in our result. 
Result so far: 64449.31746
Subtract 1890 from 1900 to get 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 14:
100 divided by 315 is 0 with a remainder of 100.
Put 0 as the next digit of the answer. 
Result so far: 64449.31746
The remainder is 100 after subtracting 0 from 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

Step 15:
315 can be fit into 1000 3 times, resulting in a remainder of 55.
Put 3 as the next digit of the answer. 
Result so far: 64449.3174603
Subtracting 945 from 1000 leaves us with 55.
Since there are no more digits in the dividend, we add a zero to the remainder making it 550, and continue the process.

On to step 16:
The number 315 fits into 550 1 times, leaving a remainder of 235.
Put 1 as the next digit of the answer. 
Result so far: 64449.31746031
Subtracting 315 from 550 leaves us 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.

After the division, we end up with 64449.31746031 and a remainder of 2.35e-07.