Let's divide 79091571 by 387
Our goal is to divide 79091571 by 387.

Let's proceed to step 1:
When dividing 7 by 387, we get 0 with a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 7 and we're left with 7.
Take the next digit (9) from the dividend and append it to 7, then repeat: 79 / 387

Moving on to step 2:
79 divided by 387 is 0 with a remainder of 79.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 79 to get 79.
Take the next digit (0) from the dividend and append it to 79, then repeat: 790 / 387

Advancing to step 3:
387 goes into 790 2 times with a remainder of 16.
Use 2 as the next digit of our solution. 
Result so far: 2.0
If we take 774 away from 790, we end up with 16.
Bring next digit (9) of the dividend behind the 16 and repeat the process: 169 / 387

Let's proceed to step 4:
387 goes into 169 0 times with a remainder of 169.
The number 0 becomes the next digit in our result. 
Result so far: 20.0
Subtract 0 from 169 to get 169.
Include the next digit (1) from the dividend after 169, then repeat: 1691 / 387

On to step 5:
1691 divided by 387 is 4 with a remainder of 143.
Record the quotient 4 as the next digit in the result. 
Result so far: 204.0
Deduct 1548 from 1691 and we're left with 143.
Grab the next digit (5) from the dividend, add it to 143, then carry on: 1435 / 387

Moving on to step 6:
1435 divided by 387 is 3 with a remainder of 274.
The next digit of our result is 3. 
Result so far: 2043.0
If we subtract 1161 from 1435, we get 274.
Fetch the next digit (7) from the dividend, attach it to 274 and continue: 2747 / 387

Advancing to step 7:
If we divide 2747 by 387, we get 7 and a remainder of 38.
Record the quotient 7 as the next digit in the result. 
Result so far: 20437.0
Deduct 2709 from 2747 and we're left with 38.
Fetch the next digit (1) from the dividend, attach it to 38 and continue: 381 / 387

Advancing to step 8:
The number 387 fits into 381 0 times, leaving a remainder of 381.
Put 0 as the next digit of the answer. 
Result so far: 204370.0
Subtract 0 from 381 to get 381.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3810, and continue the process.

Going ahead to step 9:
The number 387 fits into 3810 9 times, leaving a remainder of 327.
Write down 9 as next digit of the result. 
Result so far: 204370.9
Subtract 3483 from 3810 to get 327.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3270, and continue the process.

Advancing to step 10:
387 goes into 3270 8 times with a remainder of 174.
Write down 8 as next digit of the result. 
Result so far: 204370.98
Deduct 3096 from 3270 and we're left with 174.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1740, and continue the process.

Step 11:
1740 divided by 387 is 4 with a remainder of 192.
Use 4 as the next digit of our solution. 
Result so far: 204370.984
Deduct 1548 from 1740 and we're left with 192.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1920, and continue the process.

On to step 12:
1920 divided by 387 is 4 with a remainder of 372.
Record the quotient 4 as the next digit in the result. 
Result so far: 204370.9844
If we take 1548 away from 1920, we end up with 372.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3720, and continue the process.

After the division, we end up with 204370.9844 and a remainder of 0.00372.