54539599 ÷ 7 
Our goal is to divide 54539599 by 7.

Step 1:
5 divided by 7 is 0 with a remainder of 5.
The next digit of our result is 0. 
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 / 7

Let's proceed to step 2:
The number 7 fits into 54 7 times, leaving a remainder of 5.
Put 7 as the next digit of the answer. 
Result so far: 7.0
The remainder is 5 after subtracting 49 from 54.
Append the next digit (5) from the dividend to 5 and continue with: 55 / 7

Going ahead to step 3:
The number 7 fits into 55 7 times, leaving a remainder of 6.
The next digit of our result is 7. 
Result so far: 77.0
Deduct 49 from 55 and we're left with 6.
Include the next digit (3) from the dividend after 6, then repeat: 63 / 7

Step 4:
7 goes into 63 9 times with a remainder of 0.
Record the quotient 9 as the next digit in the result. 
Result so far: 779.0
Subtract 63 from 63 to get 0.
Append the next digit (9) from the dividend to 0 and continue with: 9 / 7

On to step 5:
9 divided by 7 is 1 with a remainder of 2.
Put 1 as the next digit of the answer. 
Result so far: 7791.0
Subtracting 7 from 9 leaves us with 2.
Include the next digit (5) from the dividend after 2, then repeat: 25 / 7

Going ahead to step 6:
If we divide 25 by 7, we get 3 and a remainder of 4.
Record the quotient 3 as the next digit in the result. 
Result so far: 77913.0
Deduct 21 from 25 and we're left with 4.
Fetch the next digit (9) from the dividend, attach it to 4 and continue: 49 / 7

Advancing to step 7:
The number 7 fits into 49 7 times, leaving a remainder of 0.
Write down 7 as next digit of the result. 
Result so far: 779137.0
If we take 49 away from 49, we end up with 0.
Grab the next digit (9) from the dividend, add it to 0, then carry on: 9 / 7

Step 8:
When dividing 9 by 7, we get 1 with a remainder of 2.
The next digit of our result is 1. 
Result so far: 7791371.0
If we take 7 away from 9, we end up with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Going ahead to step 9:
20 divided by 7 is 2 with a remainder of 6.
Write down 2 as next digit of the result. 
Result so far: 7791371.2
Deduct 14 from 20 and we're left 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.

On to step 10:
60 divided by 7 is 8 with a remainder of 4.
Put 8 as the next digit of the answer. 
Result so far: 7791371.28
If we take 56 away from 60, we end up 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.

On to step 11:
When dividing 40 by 7, we get 5 with a remainder of 5.
Write down 5 as next digit of the result. 
Result so far: 7791371.285
If we subtract 35 from 40, we get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Moving on to step 12:
7 can be fit into 50 7 times, resulting in a remainder of 1.
Write down 7 as next digit of the result. 
Result so far: 7791371.2857
The remainder is 1 after subtracting 49 from 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Step 13:
When dividing 10 by 7, we get 1 with a remainder of 3.
Record the quotient 1 as the next digit in the result. 
Result so far: 7791371.28571
Subtract 7 from 10 to get 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Step 14:
If we divide 30 by 7, we get 4 and a remainder of 2.
Write down 4 as next digit of the result. 
Result so far: 7791371.285714
The remainder is 2 after subtracting 28 from 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Let's proceed to step 15:
7 can be fit into 20 2 times, resulting in a remainder of 6.
Record the quotient 2 as the next digit in the result. 
Result so far: 7791371.2857142
Subtracting 14 from 20 leaves us 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.

On to step 16:
When dividing 60 by 7, we get 8 with a remainder of 4.
Write down 8 as next digit of the result. 
Result so far: 7791371.28571428
If we subtract 56 from 60, we 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.

After the division, we end up with 7791371.28571428 and a remainder of 4e-09.