78591870 divided by 958 
Our goal is to divide 78591870 by 958.

On to step 1:
If we divide 7 by 958, we get 0 and a remainder of 7.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 7 and we're left with 7.
Grab the next digit (8) from the dividend, add it to 7, then carry on: 78 / 958

Advancing to step 2:
When dividing 78 by 958, we get 0 with a remainder of 78.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 78 leaves us with 78.
Bring next digit (5) of the dividend behind the 78 and repeat the process: 785 / 958

Going ahead to step 3:
958 goes into 785 0 times with a remainder of 785.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 785 after subtracting 0 from 785.
Include the next digit (9) from the dividend after 785, then repeat: 7859 / 958

On to step 4:
If we divide 7859 by 958, we get 8 and a remainder of 195.
Use 8 as the next digit of our solution. 
Result so far: 8.0
Subtracting 7664 from 7859 leaves us with 195.
Append the next digit (1) from the dividend to 195 and continue with: 1951 / 958

Going ahead to step 5:
If we divide 1951 by 958, we get 2 and a remainder of 35.
The number 2 becomes the next digit in our result. 
Result so far: 82.0
The remainder is 35 after subtracting 1916 from 1951.
Grab the next digit (8) from the dividend, add it to 35, then carry on: 358 / 958

On to step 6:
958 can be fit into 358 0 times, resulting in a remainder of 358.
The number 0 becomes the next digit in our result. 
Result so far: 820.0
Subtracting 0 from 358 leaves us with 358.
Grab the next digit (7) from the dividend, add it to 358, then carry on: 3587 / 958

On to step 7:
If we divide 3587 by 958, we get 3 and a remainder of 713.
Record the quotient 3 as the next digit in the result. 
Result so far: 8203.0
The remainder is 713 after subtracting 2874 from 3587.
Take the next digit (0) from the dividend and append it to 713, then repeat: 7130 / 958

On to step 8:
958 can be fit into 7130 7 times, resulting in a remainder of 424.
Put 7 as the next digit of the answer. 
Result so far: 82037.0
The remainder is 424 after subtracting 6706 from 7130.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4240, and continue the process.

Let's proceed to step 9:
The number 958 fits into 4240 4 times, leaving a remainder of 408.
Put 4 as the next digit of the answer. 
Result so far: 82037.4
If we take 3832 away from 4240, we end up with 408.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4080, and continue the process.

On to step 10:
4080 divided by 958 is 4 with a remainder of 248.
Record the quotient 4 as the next digit in the result. 
Result so far: 82037.44
The remainder is 248 after subtracting 3832 from 4080.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2480, and continue the process.

The final result is 82037.44 with a remainder of 0.248.