70855921 ÷ 915 
Our goal is to divide 70855921 by 915.

Step 1:
When dividing 7 by 915, we get 0 with 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.
Bring next digit (0) of the dividend behind the 7 and repeat the process: 70 / 915

Going ahead to step 2:
915 can be fit into 70 0 times, resulting in a remainder of 70.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 70 and we're left with 70.
Grab the next digit (8) from the dividend, add it to 70, then carry on: 708 / 915

On to step 3:
When dividing 708 by 915, we get 0 with a remainder of 708.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 708, we get 708.
Include the next digit (5) from the dividend after 708, then repeat: 7085 / 915

Going ahead to step 4:
915 goes into 7085 7 times with a remainder of 680.
Record the quotient 7 as the next digit in the result. 
Result so far: 7.0
The remainder is 680 after subtracting 6405 from 7085.
Fetch the next digit (5) from the dividend, attach it to 680 and continue: 6805 / 915

Going ahead to step 5:
If we divide 6805 by 915, we get 7 and a remainder of 400.
Record the quotient 7 as the next digit in the result. 
Result so far: 77.0
If we subtract 6405 from 6805, we get 400.
Include the next digit (9) from the dividend after 400, then repeat: 4009 / 915

Advancing to step 6:
When dividing 4009 by 915, we get 4 with a remainder of 349.
Use 4 as the next digit of our solution. 
Result so far: 774.0
The remainder is 349 after subtracting 3660 from 4009.
Bring next digit (2) of the dividend behind the 349 and repeat the process: 3492 / 915

On to step 7:
3492 divided by 915 is 3 with a remainder of 747.
Put 3 as the next digit of the answer. 
Result so far: 7743.0
Subtract 2745 from 3492 to get 747.
Fetch the next digit (1) from the dividend, attach it to 747 and continue: 7471 / 915

Advancing to step 8:
915 can be fit into 7471 8 times, resulting in a remainder of 151.
The next digit of our result is 8. 
Result so far: 77438.0
Subtracting 7320 from 7471 leaves us with 151.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1510, and continue the process.

Moving on to step 9:
If we divide 1510 by 915, we get 1 and a remainder of 595.
The next digit of our result is 1. 
Result so far: 77438.1
If we subtract 915 from 1510, we get 595.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5950, and continue the process.

Advancing to step 10:
915 goes into 5950 6 times with a remainder of 460.
Use 6 as the next digit of our solution. 
Result so far: 77438.16
The remainder is 460 after subtracting 5490 from 5950.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4600, and continue the process.

Advancing to step 11:
915 can be fit into 4600 5 times, resulting in a remainder of 25.
Put 5 as the next digit of the answer. 
Result so far: 77438.165
Subtracting 4575 from 4600 leaves us with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Advancing to step 12:
The number 915 fits into 250 0 times, leaving a remainder of 250.
Use 0 as the next digit of our solution. 
Result so far: 77438.165
If we take 0 away from 250, we end up with 250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2500, and continue the process.

Advancing to step 13:
When dividing 2500 by 915, we get 2 with a remainder of 670.
Put 2 as the next digit of the answer. 
Result so far: 77438.16502
If we subtract 1830 from 2500, we get 670.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6700, and continue the process.

On to step 14:
915 goes into 6700 7 times with a remainder of 295.
Record the quotient 7 as the next digit in the result. 
Result so far: 77438.165027
Subtract 6405 from 6700 to get 295.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2950, and continue the process.

Moving on to step 15:
If we divide 2950 by 915, we get 3 and a remainder of 205.
Put 3 as the next digit of the answer. 
Result so far: 77438.1650273
The remainder is 205 after subtracting 2745 from 2950.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2050, and continue the process.

Let's proceed to step 16:
915 can be fit into 2050 2 times, resulting in a remainder of 220.
Use 2 as the next digit of our solution. 
Result so far: 77438.16502732
Subtract 1830 from 2050 to get 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2200, and continue the process.

The final result is 77438.16502732 with a remainder of 2.2e-07.