72166010 ÷ 50 
We want to figure out the number of times 72166010 can be divided by 50.

Step 1:
When dividing 7 by 50, we get 0 with a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 7 after subtracting 0 from 7.
Grab the next digit (2) from the dividend, add it to 7, then carry on: 72 / 50

Step 2:
50 goes into 72 1 times with a remainder of 22.
The next digit of our result is 1. 
Result so far: 1.0
If we take 50 away from 72, we end up with 22.
Bring next digit (1) of the dividend behind the 22 and repeat the process: 221 / 50

Let's proceed to step 3:
50 can be fit into 221 4 times, resulting in a remainder of 21.
Use 4 as the next digit of our solution. 
Result so far: 14.0
If we take 200 away from 221, we end up with 21.
Grab the next digit (6) from the dividend, add it to 21, then carry on: 216 / 50

Step 4:
50 goes into 216 4 times with a remainder of 16.
Put 4 as the next digit of the answer. 
Result so far: 144.0
The remainder is 16 after subtracting 200 from 216.
Bring next digit (6) of the dividend behind the 16 and repeat the process: 166 / 50

Moving on to step 5:
If we divide 166 by 50, we get 3 and a remainder of 16.
Record the quotient 3 as the next digit in the result. 
Result so far: 1443.0
If we subtract 150 from 166, we get 16.
Take the next digit (0) from the dividend and append it to 16, then repeat: 160 / 50

Advancing to step 6:
When dividing 160 by 50, we get 3 with a remainder of 10.
Put 3 as the next digit of the answer. 
Result so far: 14433.0
If we take 150 away from 160, we end up with 10.
Append the next digit (1) from the dividend to 10 and continue with: 101 / 50

Step 7:
If we divide 101 by 50, we get 2 and a remainder of 1.
Use 2 as the next digit of our solution. 
Result so far: 144332.0
If we take 100 away from 101, we end up with 1.
Bring next digit (0) of the dividend behind the 1 and repeat the process: 10 / 50

Going ahead to step 8:
10 divided by 50 is 0 with a remainder of 10.
Use 0 as the next digit of our solution. 
Result so far: 1443320.0
Deduct 0 from 10 and we're left with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

On to step 9:
50 can be fit into 100 2 times, resulting in a remainder of 0.
Use 2 as the next digit of our solution. 
Result so far: 1443320.2
Subtract 100 from 100 to 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.

Moving on to step 10:
50 goes into 0 0 times with a remainder of 0.
The next digit of our result is 0. 
Result so far: 1443320.2
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.

On to step 11:
50 goes into 0 0 times with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 1443320.2
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.

After the division, we end up with 1443320.2 and a remainder of 0.0.