We divide 18154343 by 621
We want to figure out the number of times 18154343 can be divided by 621.

Step 1:
If we divide 1 by 621, we get 0 and a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Bring next digit (8) of the dividend behind the 1 and repeat the process: 18 / 621

Going ahead to step 2:
If we divide 18 by 621, we get 0 and a remainder of 18.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 18, we get 18.
Take the next digit (1) from the dividend and append it to 18, then repeat: 181 / 621

Moving on to step 3:
The number 621 fits into 181 0 times, leaving a remainder of 181.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 181 after subtracting 0 from 181.
Bring next digit (5) of the dividend behind the 181 and repeat the process: 1815 / 621

Let's proceed to step 4:
If we divide 1815 by 621, we get 2 and a remainder of 573.
The next digit of our result is 2. 
Result so far: 2.0
The remainder is 573 after subtracting 1242 from 1815.
Bring next digit (4) of the dividend behind the 573 and repeat the process: 5734 / 621

Advancing to step 5:
If we divide 5734 by 621, we get 9 and a remainder of 145.
The number 9 becomes the next digit in our result. 
Result so far: 29.0
Subtract 5589 from 5734 to get 145.
Append the next digit (3) from the dividend to 145 and continue with: 1453 / 621

Let's proceed to step 6:
The number 621 fits into 1453 2 times, leaving a remainder of 211.
The number 2 becomes the next digit in our result. 
Result so far: 292.0
The remainder is 211 after subtracting 1242 from 1453.
Fetch the next digit (4) from the dividend, attach it to 211 and continue: 2114 / 621

Advancing to step 7:
When dividing 2114 by 621, we get 3 with a remainder of 251.
Use 3 as the next digit of our solution. 
Result so far: 2923.0
If we take 1863 away from 2114, we end up with 251.
Fetch the next digit (3) from the dividend, attach it to 251 and continue: 2513 / 621

Advancing to step 8:
The number 621 fits into 2513 4 times, leaving a remainder of 29.
Put 4 as the next digit of the answer. 
Result so far: 29234.0
If we subtract 2484 from 2513, we get 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

Let's proceed to step 9:
If we divide 290 by 621, we get 0 and a remainder of 290.
Record the quotient 0 as the next digit in the result. 
Result so far: 29234.0
If we subtract 0 from 290, we get 290.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2900, and continue the process.

Let's proceed to step 10:
When dividing 2900 by 621, we get 4 with a remainder of 416.
Write down 4 as next digit of the result. 
Result so far: 29234.04
Deduct 2484 from 2900 and we're left with 416.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4160, and continue the process.

Going ahead to step 11:
621 can be fit into 4160 6 times, resulting in a remainder of 434.
Put 6 as the next digit of the answer. 
Result so far: 29234.046
Deduct 3726 from 4160 and we're left with 434.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4340, and continue the process.

Advancing to step 12:
If we divide 4340 by 621, we get 6 and a remainder of 614.
Put 6 as the next digit of the answer. 
Result so far: 29234.0466
Subtracting 3726 from 4340 leaves us with 614.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6140, and continue the process.

The final outcome is 29234.0466, with a leftover of 0.00614.