We divide 72139510 by 887
We want to figure out the number of times 72139510 can be divided by 887.

Let's proceed to step 1:
When dividing 7 by 887, we get 0 with a remainder of 7.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 7 leaves us with 7.
Include the next digit (2) from the dividend after 7, then repeat: 72 / 887

Step 2:
887 goes into 72 0 times with a remainder of 72.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 72 after subtracting 0 from 72.
Grab the next digit (1) from the dividend, add it to 72, then carry on: 721 / 887

On to step 3:
If we divide 721 by 887, we get 0 and a remainder of 721.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 721 and we're left with 721.
Take the next digit (3) from the dividend and append it to 721, then repeat: 7213 / 887

Step 4:
887 can be fit into 7213 8 times, resulting in a remainder of 117.
The number 8 becomes the next digit in our result. 
Result so far: 8.0
Deduct 7096 from 7213 and we're left with 117.
Take the next digit (9) from the dividend and append it to 117, then repeat: 1179 / 887

Advancing to step 5:
1179 divided by 887 is 1 with a remainder of 292.
Put 1 as the next digit of the answer. 
Result so far: 81.0
Subtracting 887 from 1179 leaves us with 292.
Append the next digit (5) from the dividend to 292 and continue with: 2925 / 887

Going ahead to step 6:
The number 887 fits into 2925 3 times, leaving a remainder of 264.
The number 3 becomes the next digit in our result. 
Result so far: 813.0
If we take 2661 away from 2925, we end up with 264.
Bring next digit (1) of the dividend behind the 264 and repeat the process: 2641 / 887

Step 7:
2641 divided by 887 is 2 with a remainder of 867.
The next digit of our result is 2. 
Result so far: 8132.0
If we take 1774 away from 2641, we end up with 867.
Grab the next digit (0) from the dividend, add it to 867, then carry on: 8670 / 887

Moving on to step 8:
When dividing 8670 by 887, we get 9 with a remainder of 687.
Put 9 as the next digit of the answer. 
Result so far: 81329.0
Deduct 7983 from 8670 and we're left with 687.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6870, and continue the process.

Going ahead to step 9:
6870 divided by 887 is 7 with a remainder of 661.
Record the quotient 7 as the next digit in the result. 
Result so far: 81329.7
Subtracting 6209 from 6870 leaves us with 661.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6610, and continue the process.

Moving on to step 10:
6610 divided by 887 is 7 with a remainder of 401.
Use 7 as the next digit of our solution. 
Result so far: 81329.77
Subtract 6209 from 6610 to get 401.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4010, and continue the process.

The final outcome is 81329.77, with a leftover of 0.401.