Let's divide 15398810 by 715
Our goal is to divide 15398810 by 715.

Step 1:
If we divide 1 by 715, we get 0 and a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 1, we end up with 1.
Bring next digit (5) of the dividend behind the 1 and repeat the process: 15 / 715

Let's proceed to step 2:
The number 715 fits into 15 0 times, leaving a remainder of 15.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 15, we end up with 15.
Take the next digit (3) from the dividend and append it to 15, then repeat: 153 / 715

Step 3:
When dividing 153 by 715, we get 0 with a remainder of 153.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 153, we get 153.
Bring next digit (9) of the dividend behind the 153 and repeat the process: 1539 / 715

Moving on to step 4:
If we divide 1539 by 715, we get 2 and a remainder of 109.
Write down 2 as next digit of the result. 
Result so far: 2.0
Deduct 1430 from 1539 and we're left with 109.
Append the next digit (8) from the dividend to 109 and continue with: 1098 / 715

Going ahead to step 5:
1098 divided by 715 is 1 with a remainder of 383.
The number 1 becomes the next digit in our result. 
Result so far: 21.0
If we subtract 715 from 1098, we get 383.
Fetch the next digit (8) from the dividend, attach it to 383 and continue: 3838 / 715

Going ahead to step 6:
The number 715 fits into 3838 5 times, leaving a remainder of 263.
The next digit of our result is 5. 
Result so far: 215.0
If we subtract 3575 from 3838, we get 263.
Append the next digit (1) from the dividend to 263 and continue with: 2631 / 715

On to step 7:
If we divide 2631 by 715, we get 3 and a remainder of 486.
Record the quotient 3 as the next digit in the result. 
Result so far: 2153.0
If we subtract 2145 from 2631, we get 486.
Take the next digit (0) from the dividend and append it to 486, then repeat: 4860 / 715

Moving on to step 8:
The number 715 fits into 4860 6 times, leaving a remainder of 570.
Put 6 as the next digit of the answer. 
Result so far: 21536.0
If we subtract 4290 from 4860, we get 570.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5700, and continue the process.

On to step 9:
When dividing 5700 by 715, we get 7 with a remainder of 695.
The next digit of our result is 7. 
Result so far: 21536.7
The remainder is 695 after subtracting 5005 from 5700.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6950, and continue the process.

Let's proceed to step 10:
715 can be fit into 6950 9 times, resulting in a remainder of 515.
Use 9 as the next digit of our solution. 
Result so far: 21536.79
The remainder is 515 after subtracting 6435 from 6950.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5150, and continue the process.

On to step 11:
If we divide 5150 by 715, we get 7 and a remainder of 145.
Write down 7 as next digit of the result. 
Result so far: 21536.797
Subtract 5005 from 5150 to get 145.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1450, and continue the process.

On to step 12:
If we divide 1450 by 715, we get 2 and a remainder of 20.
The next digit of our result is 2. 
Result so far: 21536.7972
If we subtract 1430 from 1450, we get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

On to step 13:
715 can be fit into 200 0 times, resulting in a remainder of 200.
Put 0 as the next digit of the answer. 
Result so far: 21536.7972
Subtracting 0 from 200 leaves us with 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

On to step 14:
715 goes into 2000 2 times with a remainder of 570.
The number 2 becomes the next digit in our result. 
Result so far: 21536.797202
The remainder is 570 after subtracting 1430 from 2000.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5700, and continue the process.

Moving on to step 15:
715 can be fit into 5700 7 times, resulting in a remainder of 695.
Record the quotient 7 as the next digit in the result. 
Result so far: 21536.7972027
The remainder is 695 after subtracting 5005 from 5700.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6950, and continue the process.

Moving on to step 16:
The number 715 fits into 6950 9 times, leaving a remainder of 515.
The next digit of our result is 9. 
Result so far: 21536.79720279
If we take 6435 away from 6950, we end up with 515.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5150, and continue the process.

The quotient of the division is 21536.79720279, and the remainder is 5.15e-07.