Let's divide 78401154 by 558
We want to divide 78401154 by 558.

Going ahead to step 1:
When dividing 7 by 558, we get 0 with a remainder of 7.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 7 after subtracting 0 from 7.
Grab the next digit (8) from the dividend, add it to 7, then carry on: 78 / 558

Moving on to step 2:
If we divide 78 by 558, we get 0 and a remainder of 78.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 78 to get 78.
Include the next digit (4) from the dividend after 78, then repeat: 784 / 558

Step 3:
If we divide 784 by 558, we get 1 and a remainder of 226.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtracting 558 from 784 leaves us with 226.
Include the next digit (0) from the dividend after 226, then repeat: 2260 / 558

Going ahead to step 4:
558 goes into 2260 4 times with a remainder of 28.
Record the quotient 4 as the next digit in the result. 
Result so far: 14.0
Subtract 2232 from 2260 to get 28.
Bring next digit (1) of the dividend behind the 28 and repeat the process: 281 / 558

Let's proceed to step 5:
The number 558 fits into 281 0 times, leaving a remainder of 281.
Use 0 as the next digit of our solution. 
Result so far: 140.0
Deduct 0 from 281 and we're left with 281.
Include the next digit (1) from the dividend after 281, then repeat: 2811 / 558

Step 6:
The number 558 fits into 2811 5 times, leaving a remainder of 21.
Write down 5 as next digit of the result. 
Result so far: 1405.0
Deduct 2790 from 2811 and we're left with 21.
Append the next digit (5) from the dividend to 21 and continue with: 215 / 558

Step 7:
If we divide 215 by 558, we get 0 and a remainder of 215.
The next digit of our result is 0. 
Result so far: 14050.0
The remainder is 215 after subtracting 0 from 215.
Take the next digit (4) from the dividend and append it to 215, then repeat: 2154 / 558

On to step 8:
When dividing 2154 by 558, we get 3 with a remainder of 480.
The next digit of our result is 3. 
Result so far: 140503.0
Subtract 1674 from 2154 to get 480.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4800, and continue the process.

Going ahead to step 9:
If we divide 4800 by 558, we get 8 and a remainder of 336.
Write down 8 as next digit of the result. 
Result so far: 140503.8
Subtracting 4464 from 4800 leaves us with 336.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3360, and continue the process.

Going ahead to step 10:
If we divide 3360 by 558, we get 6 and a remainder of 12.
The number 6 becomes the next digit in our result. 
Result so far: 140503.86
If we take 3348 away from 3360, we end up with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Going ahead to step 11:
If we divide 120 by 558, we get 0 and a remainder of 120.
Write down 0 as next digit of the result. 
Result so far: 140503.86
Subtract 0 from 120 to get 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

On to step 12:
If we divide 1200 by 558, we get 2 and a remainder of 84.
The number 2 becomes the next digit in our result. 
Result so far: 140503.8602
If we subtract 1116 from 1200, we get 84.
Since there are no more digits in the dividend, we add a zero to the remainder making it 840, and continue the process.

Going ahead to step 13:
558 goes into 840 1 times with a remainder of 282.
Write down 1 as next digit of the result. 
Result so far: 140503.86021
Subtract 558 from 840 to get 282.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2820, and continue the process.

On to step 14:
2820 divided by 558 is 5 with a remainder of 30.
Use 5 as the next digit of our solution. 
Result so far: 140503.860215
If we subtract 2790 from 2820, we get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Let's proceed to step 15:
The number 558 fits into 300 0 times, leaving a remainder of 300.
The next digit of our result is 0. 
Result so far: 140503.860215
Deduct 0 from 300 and we're left with 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3000, and continue the process.

On to step 16:
If we divide 3000 by 558, we get 5 and a remainder of 210.
Record the quotient 5 as the next digit in the result. 
Result so far: 140503.86021505
If we subtract 2790 from 3000, we get 210.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2100, and continue the process.

The quotient of the division is 140503.86021505, and the remainder is 2.1e-07.