50408380 ÷ 7 
We want to figure out the number of times 50408380 can be divided by 7.

Going ahead to step 1:
When dividing 5 by 7, we get 0 with a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 5 to get 5.
Take the next digit (0) from the dividend and append it to 5, then repeat: 50 / 7

Going ahead to step 2:
If we divide 50 by 7, we get 7 and a remainder of 1.
Write down 7 as next digit of the result. 
Result so far: 7.0
If we subtract 49 from 50, we get 1.
Append the next digit (4) from the dividend to 1 and continue with: 14 / 7

Advancing to step 3:
7 can be fit into 14 2 times, resulting in a remainder of 0.
The number 2 becomes the next digit in our result. 
Result so far: 72.0
Deduct 14 from 14 and we're left with 0.
Grab the next digit (0) from the dividend, add it to 0, then carry on: 0 / 7

On to step 4:
0 divided by 7 is 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 720.0
If we subtract 0 from 0, we get 0.
Take the next digit (8) from the dividend and append it to 0, then repeat: 8 / 7

Advancing to step 5:
The number 7 fits into 8 1 times, leaving a remainder of 1.
Record the quotient 1 as the next digit in the result. 
Result so far: 7201.0
If we take 7 away from 8, we end up with 1.
Take the next digit (3) from the dividend and append it to 1, then repeat: 13 / 7

Moving on to step 6:
13 divided by 7 is 1 with a remainder of 6.
Use 1 as the next digit of our solution. 
Result so far: 72011.0
If we subtract 7 from 13, we get 6.
Grab the next digit (8) from the dividend, add it to 6, then carry on: 68 / 7

On to step 7:
When dividing 68 by 7, we get 9 with a remainder of 5.
Use 9 as the next digit of our solution. 
Result so far: 720119.0
Subtract 63 from 68 to get 5.
Take the next digit (0) from the dividend and append it to 5, then repeat: 50 / 7

Step 8:
If we divide 50 by 7, we get 7 and a remainder of 1.
Use 7 as the next digit of our solution. 
Result so far: 7201197.0
Subtracting 49 from 50 leaves us 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.

Going ahead to step 9:
10 divided by 7 is 1 with a remainder of 3.
The next digit of our result is 1. 
Result so far: 7201197.1
Subtracting 7 from 10 leaves us with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Going ahead to step 10:
7 can be fit into 30 4 times, resulting in a remainder of 2.
The next digit of our result is 4. 
Result so far: 7201197.14
Subtract 28 from 30 to get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Step 11:
If we divide 20 by 7, we get 2 and a remainder of 6.
Record the quotient 2 as the next digit in the result. 
Result so far: 7201197.142
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.

Moving on to step 12:
The number 7 fits into 60 8 times, leaving a remainder of 4.
The next digit of our result is 8. 
Result so far: 7201197.1428
Subtract 56 from 60 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.

Going ahead to step 13:
When dividing 40 by 7, we get 5 with a remainder of 5.
Record the quotient 5 as the next digit in the result. 
Result so far: 7201197.14285
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.

On to step 14:
The number 7 fits into 50 7 times, leaving a remainder of 1.
Record the quotient 7 as the next digit in the result. 
Result so far: 7201197.142857
Subtract 49 from 50 to get 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 15:
If we divide 10 by 7, we get 1 and a remainder of 3.
Record the quotient 1 as the next digit in the result. 
Result so far: 7201197.1428571
If we take 7 away from 10, we end up with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Advancing to step 16:
7 goes into 30 4 times with a remainder of 2.
The next digit of our result is 4. 
Result so far: 7201197.14285714
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.

In conclusion, the division gives 7201197.14285714 with a balance of 2e-09.