We divide 71639550 by 15
We want to figure out the number of times 71639550 can be divided by 15.

Step 1:
7 divided by 15 is 0 with a remainder of 7.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 7, we get 7.
Take the next digit (1) from the dividend and append it to 7, then repeat: 71 / 15

Moving on to step 2:
The number 15 fits into 71 4 times, leaving a remainder of 11.
Record the quotient 4 as the next digit in the result. 
Result so far: 4.0
If we subtract 60 from 71, we get 11.
Take the next digit (6) from the dividend and append it to 11, then repeat: 116 / 15

Advancing to step 3:
When dividing 116 by 15, we get 7 with a remainder of 11.
Write down 7 as next digit of the result. 
Result so far: 47.0
Subtract 105 from 116 to get 11.
Fetch the next digit (3) from the dividend, attach it to 11 and continue: 113 / 15

On to step 4:
When dividing 113 by 15, we get 7 with a remainder of 8.
Write down 7 as next digit of the result. 
Result so far: 477.0
If we subtract 105 from 113, we get 8.
Append the next digit (9) from the dividend to 8 and continue with: 89 / 15

Let's proceed to step 5:
89 divided by 15 is 5 with a remainder of 14.
The next digit of our result is 5. 
Result so far: 4775.0
If we take 75 away from 89, we end up with 14.
Include the next digit (5) from the dividend after 14, then repeat: 145 / 15

Going ahead to step 6:
15 can be fit into 145 9 times, resulting in a remainder of 10.
Use 9 as the next digit of our solution. 
Result so far: 47759.0
If we take 135 away from 145, we end up with 10.
Grab the next digit (5) from the dividend, add it to 10, then carry on: 105 / 15

On to step 7:
The number 15 fits into 105 7 times, leaving a remainder of 0.
The number 7 becomes the next digit in our result. 
Result so far: 477597.0
If we subtract 105 from 105, we get 0.
Include the next digit (0) from the dividend after 0, then repeat: 0 / 15

Let's proceed to step 8:
15 goes into 0 0 times with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 4775970.0
If we take 0 away from 0, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Going ahead to step 9:
15 can be fit into 0 0 times, resulting in a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 4775970.0
If we subtract 0 from 0, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Step 10:
When dividing 0 by 15, we get 0 with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 4775970.0
If we take 0 away from 0, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

In conclusion, the division gives 4775970.0 with a balance of 0.0.