We look at the division of 72120923 by 418 
Let's see how many times 418 fits into 72120923.

Step 1:
The number 418 fits into 7 0 times, leaving a remainder of 7.
Use 0 as the next digit of our solution. 
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 / 418

Going ahead to step 2:
When dividing 72 by 418, we get 0 with a remainder of 72.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 72, we end up with 72.
Include the next digit (1) from the dividend after 72, then repeat: 721 / 418

Step 3:
721 divided by 418 is 1 with a remainder of 303.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtracting 418 from 721 leaves us with 303.
Append the next digit (2) from the dividend to 303 and continue with: 3032 / 418

Moving on to step 4:
418 goes into 3032 7 times with a remainder of 106.
The number 7 becomes the next digit in our result. 
Result so far: 17.0
If we subtract 2926 from 3032, we get 106.
Take the next digit (0) from the dividend and append it to 106, then repeat: 1060 / 418

On to step 5:
If we divide 1060 by 418, we get 2 and a remainder of 224.
The number 2 becomes the next digit in our result. 
Result so far: 172.0
Deduct 836 from 1060 and we're left with 224.
Grab the next digit (9) from the dividend, add it to 224, then carry on: 2249 / 418

Advancing to step 6:
418 can be fit into 2249 5 times, resulting in a remainder of 159.
Use 5 as the next digit of our solution. 
Result so far: 1725.0
If we subtract 2090 from 2249, we get 159.
Append the next digit (2) from the dividend to 159 and continue with: 1592 / 418

On to step 7:
When dividing 1592 by 418, we get 3 with a remainder of 338.
The number 3 becomes the next digit in our result. 
Result so far: 17253.0
The remainder is 338 after subtracting 1254 from 1592.
Include the next digit (3) from the dividend after 338, then repeat: 3383 / 418

Going ahead to step 8:
418 goes into 3383 8 times with a remainder of 39.
Write down 8 as next digit of the result. 
Result so far: 172538.0
The remainder is 39 after subtracting 3344 from 3383.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

Moving on to step 9:
418 goes into 390 0 times with a remainder of 390.
The next digit of our result is 0. 
Result so far: 172538.0
If we subtract 0 from 390, we get 390.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3900, and continue the process.

On to step 10:
The number 418 fits into 3900 9 times, leaving a remainder of 138.
Use 9 as the next digit of our solution. 
Result so far: 172538.09
If we take 3762 away from 3900, we end up with 138.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1380, and continue the process.

Advancing to step 11:
1380 divided by 418 is 3 with a remainder of 126.
Record the quotient 3 as the next digit in the result. 
Result so far: 172538.093
Subtract 1254 from 1380 to get 126.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1260, and continue the process.

Let's proceed to step 12:
When dividing 1260 by 418, we get 3 with a remainder of 6.
The number 3 becomes the next digit in our result. 
Result so far: 172538.0933
If we take 1254 away from 1260, we end up with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

The final outcome is 172538.0933, with a leftover of 6e-05.