70215817 divided by 828 
We want to figure out the number of times 70215817 can be divided by 828.

Step 1:
The number 828 fits into 7 0 times, leaving a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 7 leaves us with 7.
Include the next digit (0) from the dividend after 7, then repeat: 70 / 828

Step 2:
828 can be fit into 70 0 times, resulting in a remainder of 70.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 70, we get 70.
Take the next digit (2) from the dividend and append it to 70, then repeat: 702 / 828

Step 3:
The number 828 fits into 702 0 times, leaving a remainder of 702.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 702 to get 702.
Take the next digit (1) from the dividend and append it to 702, then repeat: 7021 / 828

Step 4:
The number 828 fits into 7021 8 times, leaving a remainder of 397.
Use 8 as the next digit of our solution. 
Result so far: 8.0
Subtracting 6624 from 7021 leaves us with 397.
Include the next digit (5) from the dividend after 397, then repeat: 3975 / 828

Advancing to step 5:
If we divide 3975 by 828, we get 4 and a remainder of 663.
Put 4 as the next digit of the answer. 
Result so far: 84.0
Subtract 3312 from 3975 to get 663.
Append the next digit (8) from the dividend to 663 and continue with: 6638 / 828

Let's proceed to step 6:
6638 divided by 828 is 8 with a remainder of 14.
Put 8 as the next digit of the answer. 
Result so far: 848.0
If we take 6624 away from 6638, we end up with 14.
Fetch the next digit (1) from the dividend, attach it to 14 and continue: 141 / 828

On to step 7:
828 can be fit into 141 0 times, resulting in a remainder of 141.
The next digit of our result is 0. 
Result so far: 8480.0
Deduct 0 from 141 and we're left with 141.
Bring next digit (7) of the dividend behind the 141 and repeat the process: 1417 / 828

Going ahead to step 8:
If we divide 1417 by 828, we get 1 and a remainder of 589.
Use 1 as the next digit of our solution. 
Result so far: 84801.0
Deduct 828 from 1417 and we're left with 589.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5890, and continue the process.

Going ahead to step 9:
If we divide 5890 by 828, we get 7 and a remainder of 94.
The number 7 becomes the next digit in our result. 
Result so far: 84801.7
Deduct 5796 from 5890 and we're left with 94.
Since there are no more digits in the dividend, we add a zero to the remainder making it 940, and continue the process.

Going ahead to step 10:
828 can be fit into 940 1 times, resulting in a remainder of 112.
Use 1 as the next digit of our solution. 
Result so far: 84801.71
If we subtract 828 from 940, we get 112.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1120, and continue the process.

Moving on to step 11:
1120 divided by 828 is 1 with a remainder of 292.
The number 1 becomes the next digit in our result. 
Result so far: 84801.711
If we take 828 away from 1120, we end up with 292.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2920, and continue the process.

The final result is 84801.711 with a remainder of 0.0292.