We're dividing 70284215 by 129 
We want to figure out the number of times 70284215 can be divided by 129.

Let's proceed to step 1:
129 can be fit into 7 0 times, resulting in a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 7 after subtracting 0 from 7.
Append the next digit (0) from the dividend to 7 and continue with: 70 / 129

Let's proceed to step 2:
70 divided by 129 is 0 with a remainder of 70.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 70, we end up with 70.
Grab the next digit (2) from the dividend, add it to 70, then carry on: 702 / 129

Advancing to step 3:
The number 129 fits into 702 5 times, leaving a remainder of 57.
The next digit of our result is 5. 
Result so far: 5.0
Deduct 645 from 702 and we're left with 57.
Grab the next digit (8) from the dividend, add it to 57, then carry on: 578 / 129

Moving on to step 4:
578 divided by 129 is 4 with a remainder of 62.
Write down 4 as next digit of the result. 
Result so far: 54.0
Deduct 516 from 578 and we're left with 62.
Grab the next digit (4) from the dividend, add it to 62, then carry on: 624 / 129

Moving on to step 5:
When dividing 624 by 129, we get 4 with a remainder of 108.
Put 4 as the next digit of the answer. 
Result so far: 544.0
If we take 516 away from 624, we end up with 108.
Bring next digit (2) of the dividend behind the 108 and repeat the process: 1082 / 129

Let's proceed to step 6:
When dividing 1082 by 129, we get 8 with a remainder of 50.
Use 8 as the next digit of our solution. 
Result so far: 5448.0
Subtracting 1032 from 1082 leaves us with 50.
Bring next digit (1) of the dividend behind the 50 and repeat the process: 501 / 129

Going ahead to step 7:
129 goes into 501 3 times with a remainder of 114.
The next digit of our result is 3. 
Result so far: 54483.0
If we take 387 away from 501, we end up with 114.
Grab the next digit (5) from the dividend, add it to 114, then carry on: 1145 / 129

Step 8:
129 goes into 1145 8 times with a remainder of 113.
Put 8 as the next digit of the answer. 
Result so far: 544838.0
If we take 1032 away from 1145, we end up with 113.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1130, and continue the process.

Going ahead to step 9:
1130 divided by 129 is 8 with a remainder of 98.
Use 8 as the next digit of our solution. 
Result so far: 544838.8
Subtract 1032 from 1130 to get 98.
Since there are no more digits in the dividend, we add a zero to the remainder making it 980, and continue the process.

Going ahead to step 10:
129 can be fit into 980 7 times, resulting in a remainder of 77.
The next digit of our result is 7. 
Result so far: 544838.87
Deduct 903 from 980 and we're left with 77.
Since there are no more digits in the dividend, we add a zero to the remainder making it 770, and continue the process.

Moving on to step 11:
The number 129 fits into 770 5 times, leaving a remainder of 125.
Use 5 as the next digit of our solution. 
Result so far: 544838.875
The remainder is 125 after subtracting 645 from 770.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1250, and continue the process.

On to step 12:
129 can be fit into 1250 9 times, resulting in a remainder of 89.
The next digit of our result is 9. 
Result so far: 544838.8759
Subtract 1161 from 1250 to get 89.
Since there are no more digits in the dividend, we add a zero to the remainder making it 890, and continue the process.

Step 13:
When dividing 890 by 129, we get 6 with a remainder of 116.
The number 6 becomes the next digit in our result. 
Result so far: 544838.87596
The remainder is 116 after subtracting 774 from 890.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1160, and continue the process.

Let's proceed to step 14:
129 can be fit into 1160 8 times, resulting in a remainder of 128.
Write down 8 as next digit of the result. 
Result so far: 544838.875968
Subtracting 1032 from 1160 leaves us with 128.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1280, and continue the process.

Advancing to step 15:
1280 divided by 129 is 9 with a remainder of 119.
Use 9 as the next digit of our solution. 
Result so far: 544838.8759689
If we subtract 1161 from 1280, we get 119.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1190, and continue the process.

Advancing to step 16:
129 can be fit into 1190 9 times, resulting in a remainder of 29.
Use 9 as the next digit of our solution. 
Result so far: 544838.87596899
The remainder is 29 after subtracting 1161 from 1190.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

The final outcome is 544838.87596899, with a leftover of 2.9e-08.