We divide 533521 by 7
We want to figure out the number of times 533521 can be divided by 7.

On to 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
Deduct 0 from 5 and we're left with 5.
Take the next digit (3) from the dividend and append it to 5, then repeat: 53 / 7

Step 2:
If we divide 53 by 7, we get 7 and a remainder of 4.
The number 7 becomes the next digit in our result. 
Result so far: 7.0
The remainder is 4 after subtracting 49 from 53.
Include the next digit (3) from the dividend after 4, then repeat: 43 / 7

Step 3:
If we divide 43 by 7, we get 6 and a remainder of 1.
The next digit of our result is 6. 
Result so far: 76.0
If we take 42 away from 43, we end up with 1.
Take the next digit (5) from the dividend and append it to 1, then repeat: 15 / 7

Moving on to step 4:
The number 7 fits into 15 2 times, leaving a remainder of 1.
Record the quotient 2 as the next digit in the result. 
Result so far: 762.0
Subtracting 14 from 15 leaves us with 1.
Include the next digit (2) from the dividend after 1, then repeat: 12 / 7

On to step 5:
7 can be fit into 12 1 times, resulting in a remainder of 5.
Put 1 as the next digit of the answer. 
Result so far: 7621.0
Subtract 7 from 12 to get 5.
Include the next digit (1) from the dividend after 5, then repeat: 51 / 7

On to step 6:
If we divide 51 by 7, we get 7 and a remainder of 2.
The number 7 becomes the next digit in our result. 
Result so far: 76217.0
The remainder is 2 after subtracting 49 from 51.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

On to step 7:
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: 76217.2
If we subtract 14 from 20, we get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Let's proceed to step 8:
When dividing 60 by 7, we get 8 with a remainder of 4.
Put 8 as the next digit of the answer. 
Result so far: 76217.28
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.

Advancing to step 9:
7 goes into 40 5 times with a remainder of 5.
Record the quotient 5 as the next digit in the result. 
Result so far: 76217.285
Deduct 35 from 40 and we're left with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Advancing to step 10:
7 can be fit into 50 7 times, resulting in a remainder of 1.
Put 7 as the next digit of the answer. 
Result so far: 76217.2857
If we subtract 49 from 50, we 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.

Step 11:
7 goes into 10 1 times with a remainder of 3.
Use 1 as the next digit of our solution. 
Result so far: 76217.28571
The remainder is 3 after subtracting 7 from 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

On to step 12:
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: 76217.285714
Subtracting 28 from 30 leaves us 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.

Step 13:
If we divide 20 by 7, we get 2 and a remainder of 6.
The next digit of our result is 2. 
Result so far: 76217.2857142
If we take 14 away from 20, we end up 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.

Advancing to step 14:
If we divide 60 by 7, we get 8 and a remainder of 4.
Put 8 as the next digit of the answer. 
Result so far: 76217.28571428
Deduct 56 from 60 and we're left 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.

The final outcome is 76217.28571428, with a leftover of 4e-09.