870839 ÷ 72 
We're looking to find how many times 72 goes into 870839.

Let's proceed to step 1:
The number 72 fits into 8 0 times, leaving a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Include the next digit (7) from the dividend after 8, then repeat: 87 / 72

On to step 2:
87 divided by 72 is 1 with a remainder of 15.
The next digit of our result is 1. 
Result so far: 1.0
If we subtract 72 from 87, we get 15.
Append the next digit (0) from the dividend to 15 and continue with: 150 / 72

Let's proceed to step 3:
72 goes into 150 2 times with a remainder of 6.
Put 2 as the next digit of the answer. 
Result so far: 12.0
The remainder is 6 after subtracting 144 from 150.
Fetch the next digit (8) from the dividend, attach it to 6 and continue: 68 / 72

Advancing to step 4:
The number 72 fits into 68 0 times, leaving a remainder of 68.
Put 0 as the next digit of the answer. 
Result so far: 120.0
Subtracting 0 from 68 leaves us with 68.
Include the next digit (3) from the dividend after 68, then repeat: 683 / 72

On to step 5:
When dividing 683 by 72, we get 9 with a remainder of 35.
Use 9 as the next digit of our solution. 
Result so far: 1209.0
If we subtract 648 from 683, we get 35.
Grab the next digit (9) from the dividend, add it to 35, then carry on: 359 / 72

On to step 6:
72 can be fit into 359 4 times, resulting in a remainder of 71.
Write down 4 as next digit of the result. 
Result so far: 12094.0
Deduct 288 from 359 and we're left with 71.
Since there are no more digits in the dividend, we add a zero to the remainder making it 710, and continue the process.

Let's proceed to step 7:
72 goes into 710 9 times with a remainder of 62.
The number 9 becomes the next digit in our result. 
Result so far: 12094.9
If we take 648 away from 710, we end up with 62.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

Going ahead to step 8:
72 can be fit into 620 8 times, resulting in a remainder of 44.
Write down 8 as next digit of the result. 
Result so far: 12094.98
Subtract 576 from 620 to get 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Advancing to step 9:
72 can be fit into 440 6 times, resulting in a remainder of 8.
Use 6 as the next digit of our solution. 
Result so far: 12094.986
Deduct 432 from 440 and we're left with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

On to step 10:
80 divided by 72 is 1 with a remainder of 8.
Put 1 as the next digit of the answer. 
Result so far: 12094.9861
The remainder is 8 after subtracting 72 from 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Advancing to step 11:
72 can be fit into 80 1 times, resulting in a remainder of 8.
Write down 1 as next digit of the result. 
Result so far: 12094.98611
Subtracting 72 from 80 leaves us with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

After the division, we end up with 12094.98611 and a remainder of 8e-06.