53561254 divided by 18 
Let's see how many times 18 fits into 53561254.

Step 1:
18 goes into 5 0 times with a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 5 and we're left with 5.
Bring next digit (3) of the dividend behind the 5 and repeat the process: 53 / 18

Going ahead to step 2:
18 can be fit into 53 2 times, resulting in a remainder of 17.
Write down 2 as next digit of the result. 
Result so far: 2.0
If we subtract 36 from 53, we get 17.
Grab the next digit (5) from the dividend, add it to 17, then carry on: 175 / 18

Going ahead to step 3:
If we divide 175 by 18, we get 9 and a remainder of 13.
Record the quotient 9 as the next digit in the result. 
Result so far: 29.0
Subtract 162 from 175 to get 13.
Bring next digit (6) of the dividend behind the 13 and repeat the process: 136 / 18

Let's proceed to step 4:
When dividing 136 by 18, we get 7 with a remainder of 10.
The next digit of our result is 7. 
Result so far: 297.0
Deduct 126 from 136 and we're left with 10.
Append the next digit (1) from the dividend to 10 and continue with: 101 / 18

On to step 5:
If we divide 101 by 18, we get 5 and a remainder of 11.
Use 5 as the next digit of our solution. 
Result so far: 2975.0
Deduct 90 from 101 and we're left with 11.
Grab the next digit (2) from the dividend, add it to 11, then carry on: 112 / 18

Moving on to step 6:
If we divide 112 by 18, we get 6 and a remainder of 4.
Use 6 as the next digit of our solution. 
Result so far: 29756.0
Deduct 108 from 112 and we're left with 4.
Append the next digit (5) from the dividend to 4 and continue with: 45 / 18

Let's proceed to step 7:
45 divided by 18 is 2 with a remainder of 9.
The number 2 becomes the next digit in our result. 
Result so far: 297562.0
Subtracting 36 from 45 leaves us with 9.
Grab the next digit (4) from the dividend, add it to 9, then carry on: 94 / 18

Let's proceed to step 8:
The number 18 fits into 94 5 times, leaving a remainder of 4.
Record the quotient 5 as the next digit in the result. 
Result so far: 2975625.0
Subtracting 90 from 94 leaves us with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Advancing to step 9:
If we divide 40 by 18, we get 2 and a remainder of 4.
The next digit of our result is 2. 
Result so far: 2975625.2
The remainder is 4 after subtracting 36 from 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Moving on to step 10:
40 divided by 18 is 2 with a remainder of 4.
Put 2 as the next digit of the answer. 
Result so far: 2975625.22
Subtract 36 from 40 to get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

The final outcome is 2975625.22, with a leftover of 0.004.