159190 ÷ 72 
We want to figure out the number of times 159190 can be divided by 72.

On to step 1:
The number 72 fits into 1 0 times, leaving a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Append the next digit (5) from the dividend to 1 and continue with: 15 / 72

Let's proceed to step 2:
72 can be fit into 15 0 times, resulting in a remainder of 15.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 15, we get 15.
Bring next digit (9) of the dividend behind the 15 and repeat the process: 159 / 72

Moving on to step 3:
If we divide 159 by 72, we get 2 and a remainder of 15.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
If we take 144 away from 159, we end up with 15.
Fetch the next digit (1) from the dividend, attach it to 15 and continue: 151 / 72

Going ahead to step 4:
72 can be fit into 151 2 times, resulting in a remainder of 7.
Use 2 as the next digit of our solution. 
Result so far: 22.0
If we take 144 away from 151, we end up with 7.
Take the next digit (9) from the dividend and append it to 7, then repeat: 79 / 72

Step 5:
If we divide 79 by 72, we get 1 and a remainder of 7.
Write down 1 as next digit of the result. 
Result so far: 221.0
Subtract 72 from 79 to get 7.
Append the next digit (0) from the dividend to 7 and continue with: 70 / 72

Going ahead to step 6:
70 divided by 72 is 0 with a remainder of 70.
Use 0 as the next digit of our solution. 
Result so far: 2210.0
Subtract 0 from 70 to get 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

On to step 7:
If we divide 700 by 72, we get 9 and a remainder of 52.
Put 9 as the next digit of the answer. 
Result so far: 2210.9
Subtracting 648 from 700 leaves us with 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Moving on to step 8:
72 can be fit into 520 7 times, resulting in a remainder of 16.
Put 7 as the next digit of the answer. 
Result so far: 2210.97
The remainder is 16 after subtracting 504 from 520.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

On to step 9:
If we divide 160 by 72, we get 2 and a remainder of 16.
Write down 2 as next digit of the result. 
Result so far: 2210.972
If we subtract 144 from 160, we get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Step 10:
160 divided by 72 is 2 with a remainder of 16.
The number 2 becomes the next digit in our result. 
Result so far: 2210.9722
The remainder is 16 after subtracting 144 from 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

The final outcome is 2210.9722, with a leftover of 0.00016.