5861574 divided by 129 
Our goal is to divide 5861574 by 129.

Advancing to step 1:
129 can be fit into 5 0 times, resulting in a remainder of 5.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 5 after subtracting 0 from 5.
Bring next digit (8) of the dividend behind the 5 and repeat the process: 58 / 129

Going ahead to step 2:
129 goes into 58 0 times with a remainder of 58.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 58 leaves us with 58.
Append the next digit (6) from the dividend to 58 and continue with: 586 / 129

Advancing to step 3:
If we divide 586 by 129, we get 4 and a remainder of 70.
Use 4 as the next digit of our solution. 
Result so far: 4.0
Deduct 516 from 586 and we're left with 70.
Take the next digit (1) from the dividend and append it to 70, then repeat: 701 / 129

Step 4:
129 goes into 701 5 times with a remainder of 56.
Put 5 as the next digit of the answer. 
Result so far: 45.0
The remainder is 56 after subtracting 645 from 701.
Bring next digit (5) of the dividend behind the 56 and repeat the process: 565 / 129

On to step 5:
129 can be fit into 565 4 times, resulting in a remainder of 49.
Record the quotient 4 as the next digit in the result. 
Result so far: 454.0
The remainder is 49 after subtracting 516 from 565.
Grab the next digit (7) from the dividend, add it to 49, then carry on: 497 / 129

Let's proceed to step 6:
129 can be fit into 497 3 times, resulting in a remainder of 110.
The number 3 becomes the next digit in our result. 
Result so far: 4543.0
The remainder is 110 after subtracting 387 from 497.
Grab the next digit (4) from the dividend, add it to 110, then carry on: 1104 / 129

On to step 7:
129 goes into 1104 8 times with a remainder of 72.
The next digit of our result is 8. 
Result so far: 45438.0
If we subtract 1032 from 1104, we get 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

Advancing to step 8:
129 goes into 720 5 times with a remainder of 75.
Record the quotient 5 as the next digit in the result. 
Result so far: 45438.5
Subtracting 645 from 720 leaves us with 75.
Since there are no more digits in the dividend, we add a zero to the remainder making it 750, and continue the process.

Advancing to step 9:
The number 129 fits into 750 5 times, leaving a remainder of 105.
Record the quotient 5 as the next digit in the result. 
Result so far: 45438.55
Subtract 645 from 750 to get 105.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1050, and continue the process.

The final result is 45438.55 with a remainder of 0.105.