We look at the division of 72999190 by 621 
Our goal is to divide 72999190 by 621.

Going ahead to step 1:
621 can be fit into 7 0 times, resulting in a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 7, we end up with 7.
Fetch the next digit (2) from the dividend, attach it to 7 and continue: 72 / 621

Let's proceed to step 2:
The number 621 fits into 72 0 times, leaving a remainder of 72.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 72 and we're left with 72.
Grab the next digit (9) from the dividend, add it to 72, then carry on: 729 / 621

Moving on to step 3:
621 can be fit into 729 1 times, resulting in a remainder of 108.
Put 1 as the next digit of the answer. 
Result so far: 1.0
The remainder is 108 after subtracting 621 from 729.
Include the next digit (9) from the dividend after 108, then repeat: 1089 / 621

Going ahead to step 4:
621 goes into 1089 1 times with a remainder of 468.
Write down 1 as next digit of the result. 
Result so far: 11.0
The remainder is 468 after subtracting 621 from 1089.
Grab the next digit (9) from the dividend, add it to 468, then carry on: 4689 / 621

Moving on to step 5:
When dividing 4689 by 621, we get 7 with a remainder of 342.
Write down 7 as next digit of the result. 
Result so far: 117.0
The remainder is 342 after subtracting 4347 from 4689.
Grab the next digit (1) from the dividend, add it to 342, then carry on: 3421 / 621

On to step 6:
If we divide 3421 by 621, we get 5 and a remainder of 316.
Put 5 as the next digit of the answer. 
Result so far: 1175.0
Deduct 3105 from 3421 and we're left with 316.
Fetch the next digit (9) from the dividend, attach it to 316 and continue: 3169 / 621

Advancing to step 7:
3169 divided by 621 is 5 with a remainder of 64.
The next digit of our result is 5. 
Result so far: 11755.0
If we take 3105 away from 3169, we end up with 64.
Append the next digit (0) from the dividend to 64 and continue with: 640 / 621

Advancing to step 8:
621 goes into 640 1 times with a remainder of 19.
The number 1 becomes the next digit in our result. 
Result so far: 117551.0
If we take 621 away from 640, we end up with 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Step 9:
190 divided by 621 is 0 with a remainder of 190.
The number 0 becomes the next digit in our result. 
Result so far: 117551.0
If we subtract 0 from 190, we get 190.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1900, and continue the process.

Step 10:
When dividing 1900 by 621, we get 3 with a remainder of 37.
Write down 3 as next digit of the result. 
Result so far: 117551.03
The remainder is 37 after subtracting 1863 from 1900.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

Advancing to step 11:
370 divided by 621 is 0 with a remainder of 370.
The number 0 becomes the next digit in our result. 
Result so far: 117551.03
Deduct 0 from 370 and we're left with 370.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3700, and continue the process.

Let's proceed to step 12:
If we divide 3700 by 621, we get 5 and a remainder of 595.
The number 5 becomes the next digit in our result. 
Result so far: 117551.0305
Subtracting 3105 from 3700 leaves us with 595.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5950, and continue the process.

Going ahead to step 13:
621 can be fit into 5950 9 times, resulting in a remainder of 361.
Record the quotient 9 as the next digit in the result. 
Result so far: 117551.03059
If we subtract 5589 from 5950, we get 361.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3610, and continue the process.

On to step 14:
3610 divided by 621 is 5 with a remainder of 505.
The next digit of our result is 5. 
Result so far: 117551.030595
If we subtract 3105 from 3610, we get 505.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5050, and continue the process.

Advancing to step 15:
621 can be fit into 5050 8 times, resulting in a remainder of 82.
Use 8 as the next digit of our solution. 
Result so far: 117551.0305958
Subtract 4968 from 5050 to get 82.
Since there are no more digits in the dividend, we add a zero to the remainder making it 820, and continue the process.

Step 16:
621 goes into 820 1 times with a remainder of 199.
Use 1 as the next digit of our solution. 
Result so far: 117551.03059581
The remainder is 199 after subtracting 621 from 820.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1990, and continue the process.

The final outcome is 117551.03059581, with a leftover of 1.99e-07.