8425334 divided by 521 
Our goal is to divide 8425334 by 521.

Going ahead to step 1:
The number 521 fits into 8 0 times, leaving a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Bring next digit (4) of the dividend behind the 8 and repeat the process: 84 / 521

Advancing to step 2:
84 divided by 521 is 0 with a remainder of 84.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 84 after subtracting 0 from 84.
Include the next digit (2) from the dividend after 84, then repeat: 842 / 521

Advancing to step 3:
521 can be fit into 842 1 times, resulting in a remainder of 321.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
The remainder is 321 after subtracting 521 from 842.
Append the next digit (5) from the dividend to 321 and continue with: 3215 / 521

Moving on to step 4:
521 goes into 3215 6 times with a remainder of 89.
The next digit of our result is 6. 
Result so far: 16.0
If we take 3126 away from 3215, we end up with 89.
Grab the next digit (3) from the dividend, add it to 89, then carry on: 893 / 521

Let's proceed to step 5:
521 can be fit into 893 1 times, resulting in a remainder of 372.
The number 1 becomes the next digit in our result. 
Result so far: 161.0
If we subtract 521 from 893, we get 372.
Take the next digit (3) from the dividend and append it to 372, then repeat: 3723 / 521

Going ahead to step 6:
521 can be fit into 3723 7 times, resulting in a remainder of 76.
The next digit of our result is 7. 
Result so far: 1617.0
If we subtract 3647 from 3723, we get 76.
Grab the next digit (4) from the dividend, add it to 76, then carry on: 764 / 521

Let's proceed to step 7:
The number 521 fits into 764 1 times, leaving a remainder of 243.
The next digit of our result is 1. 
Result so far: 16171.0
Subtracting 521 from 764 leaves us with 243.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2430, and continue the process.

Moving on to step 8:
2430 divided by 521 is 4 with a remainder of 346.
Put 4 as the next digit of the answer. 
Result so far: 16171.4
Deduct 2084 from 2430 and we're left with 346.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3460, and continue the process.

Moving on to step 9:
When dividing 3460 by 521, we get 6 with a remainder of 334.
Put 6 as the next digit of the answer. 
Result so far: 16171.46
Deduct 3126 from 3460 and we're left with 334.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3340, and continue the process.

On to step 10:
3340 divided by 521 is 6 with a remainder of 214.
Use 6 as the next digit of our solution. 
Result so far: 16171.466
If we take 3126 away from 3340, we end up with 214.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2140, and continue the process.

The quotient of the division is 16171.466, and the remainder is 0.0214.