72139685 divided by 789 
Our goal is to divide 72139685 by 789.

Advancing to step 1:
789 goes into 7 0 times with a remainder of 7.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 7 to get 7.
Take the next digit (2) from the dividend and append it to 7, then repeat: 72 / 789

Advancing to step 2:
72 divided by 789 is 0 with a remainder of 72.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 72 after subtracting 0 from 72.
Append the next digit (1) from the dividend to 72 and continue with: 721 / 789

Moving on to step 3:
789 can be fit into 721 0 times, resulting in a remainder of 721.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 721 after subtracting 0 from 721.
Append the next digit (3) from the dividend to 721 and continue with: 7213 / 789

Step 4:
The number 789 fits into 7213 9 times, leaving a remainder of 112.
Use 9 as the next digit of our solution. 
Result so far: 9.0
Subtract 7101 from 7213 to get 112.
Take the next digit (9) from the dividend and append it to 112, then repeat: 1129 / 789

Let's proceed to step 5:
1129 divided by 789 is 1 with a remainder of 340.
Use 1 as the next digit of our solution. 
Result so far: 91.0
Subtracting 789 from 1129 leaves us with 340.
Bring next digit (6) of the dividend behind the 340 and repeat the process: 3406 / 789

Let's proceed to step 6:
789 can be fit into 3406 4 times, resulting in a remainder of 250.
Record the quotient 4 as the next digit in the result. 
Result so far: 914.0
If we subtract 3156 from 3406, we get 250.
Include the next digit (8) from the dividend after 250, then repeat: 2508 / 789

Going ahead to step 7:
2508 divided by 789 is 3 with a remainder of 141.
Record the quotient 3 as the next digit in the result. 
Result so far: 9143.0
If we subtract 2367 from 2508, we get 141.
Bring next digit (5) of the dividend behind the 141 and repeat the process: 1415 / 789

Going ahead to step 8:
789 goes into 1415 1 times with a remainder of 626.
Put 1 as the next digit of the answer. 
Result so far: 91431.0
If we subtract 789 from 1415, we get 626.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6260, and continue the process.

Advancing to step 9:
If we divide 6260 by 789, we get 7 and a remainder of 737.
The number 7 becomes the next digit in our result. 
Result so far: 91431.7
If we subtract 5523 from 6260, we get 737.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7370, and continue the process.

Step 10:
The number 789 fits into 7370 9 times, leaving a remainder of 269.
The next digit of our result is 9. 
Result so far: 91431.79
If we subtract 7101 from 7370, we get 269.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2690, and continue the process.

Advancing to step 11:
If we divide 2690 by 789, we get 3 and a remainder of 323.
Write down 3 as next digit of the result. 
Result so far: 91431.793
If we take 2367 away from 2690, we end up with 323.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3230, and continue the process.

Going ahead to step 12:
If we divide 3230 by 789, we get 4 and a remainder of 74.
Put 4 as the next digit of the answer. 
Result so far: 91431.7934
Subtracting 3156 from 3230 leaves us with 74.
Since there are no more digits in the dividend, we add a zero to the remainder making it 740, and continue the process.

Going ahead to step 13:
When dividing 740 by 789, we get 0 with a remainder of 740.
Put 0 as the next digit of the answer. 
Result so far: 91431.7934
If we take 0 away from 740, we end up with 740.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7400, and continue the process.

Going ahead to step 14:
When dividing 7400 by 789, we get 9 with a remainder of 299.
Write down 9 as next digit of the result. 
Result so far: 91431.793409
If we take 7101 away from 7400, we end up with 299.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2990, and continue the process.

Moving on to step 15:
789 goes into 2990 3 times with a remainder of 623.
The number 3 becomes the next digit in our result. 
Result so far: 91431.7934093
If we take 2367 away from 2990, we end up with 623.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6230, and continue the process.

On to step 16:
789 can be fit into 6230 7 times, resulting in a remainder of 707.
Record the quotient 7 as the next digit in the result. 
Result so far: 91431.79340937
If we subtract 5523 from 6230, we get 707.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7070, and continue the process.

The final result is 91431.79340937 with a remainder of 7.07e-07.