54809926 divided by 15 
Our goal is to divide 54809926 by 15.

On to step 1:
If we divide 5 by 15, we get 0 and a remainder of 5.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 5, we get 5.
Bring next digit (4) of the dividend behind the 5 and repeat the process: 54 / 15

On to step 2:
15 can be fit into 54 3 times, resulting in a remainder of 9.
Write down 3 as next digit of the result. 
Result so far: 3.0
If we take 45 away from 54, we end up with 9.
Grab the next digit (8) from the dividend, add it to 9, then carry on: 98 / 15

Advancing to step 3:
When dividing 98 by 15, we get 6 with a remainder of 8.
Use 6 as the next digit of our solution. 
Result so far: 36.0
If we take 90 away from 98, we end up with 8.
Bring next digit (0) of the dividend behind the 8 and repeat the process: 80 / 15

On to step 4:
The number 15 fits into 80 5 times, leaving a remainder of 5.
Write down 5 as next digit of the result. 
Result so far: 365.0
Subtracting 75 from 80 leaves us with 5.
Take the next digit (9) from the dividend and append it to 5, then repeat: 59 / 15

Going ahead to step 5:
When dividing 59 by 15, we get 3 with a remainder of 14.
Use 3 as the next digit of our solution. 
Result so far: 3653.0
If we take 45 away from 59, we end up with 14.
Fetch the next digit (9) from the dividend, attach it to 14 and continue: 149 / 15

Step 6:
When dividing 149 by 15, we get 9 with a remainder of 14.
Record the quotient 9 as the next digit in the result. 
Result so far: 36539.0
If we take 135 away from 149, we end up with 14.
Fetch the next digit (2) from the dividend, attach it to 14 and continue: 142 / 15

Step 7:
15 can be fit into 142 9 times, resulting in a remainder of 7.
Put 9 as the next digit of the answer. 
Result so far: 365399.0
Subtracting 135 from 142 leaves us with 7.
Append the next digit (6) from the dividend to 7 and continue with: 76 / 15

Going ahead to step 8:
15 goes into 76 5 times with a remainder of 1.
Use 5 as the next digit of our solution. 
Result so far: 3653995.0
Deduct 75 from 76 and we're left with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Advancing to step 9:
10 divided by 15 is 0 with a remainder of 10.
The number 0 becomes the next digit in our result. 
Result so far: 3653995.0
The remainder is 10 after subtracting 0 from 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Advancing to step 10:
When dividing 100 by 15, we get 6 with a remainder of 10.
The number 6 becomes the next digit in our result. 
Result so far: 3653995.06
If we take 90 away from 100, we end up 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.

Step 11:
If we divide 100 by 15, we get 6 and a remainder of 10.
Use 6 as the next digit of our solution. 
Result so far: 3653995.066
Subtracting 90 from 100 leaves us 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.

In conclusion, the division gives 3653995.066 with a balance of 0.001.