We're dividing 151620 by 51 
We want to divide 151620 by 51.

Let's proceed to step 1:
The number 51 fits into 1 0 times, leaving a remainder of 1.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Grab the next digit (5) from the dividend, add it to 1, then carry on: 15 / 51

Let's proceed to step 2:
The number 51 fits into 15 0 times, leaving a remainder of 15.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 15, we end up with 15.
Append the next digit (1) from the dividend to 15 and continue with: 151 / 51

Step 3:
51 goes into 151 2 times with a remainder of 49.
Use 2 as the next digit of our solution. 
Result so far: 2.0
If we subtract 102 from 151, we get 49.
Grab the next digit (6) from the dividend, add it to 49, then carry on: 496 / 51

On to step 4:
If we divide 496 by 51, we get 9 and a remainder of 37.
Record the quotient 9 as the next digit in the result. 
Result so far: 29.0
If we subtract 459 from 496, we get 37.
Take the next digit (2) from the dividend and append it to 37, then repeat: 372 / 51

Moving on to step 5:
51 can be fit into 372 7 times, resulting in a remainder of 15.
Use 7 as the next digit of our solution. 
Result so far: 297.0
If we subtract 357 from 372, we get 15.
Include the next digit (0) from the dividend after 15, then repeat: 150 / 51

On to step 6:
The number 51 fits into 150 2 times, leaving a remainder of 48.
Write down 2 as next digit of the result. 
Result so far: 2972.0
Subtract 102 from 150 to get 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Advancing to step 7:
51 can be fit into 480 9 times, resulting in a remainder of 21.
The next digit of our result is 9. 
Result so far: 2972.9
Subtracting 459 from 480 leaves us with 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Step 8:
If we divide 210 by 51, we get 4 and a remainder of 6.
Use 4 as the next digit of our solution. 
Result so far: 2972.94
If we take 204 away from 210, we end up with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Moving on to step 9:
60 divided by 51 is 1 with a remainder of 9.
The next digit of our result is 1. 
Result so far: 2972.941
Subtract 51 from 60 to get 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

On to step 10:
The number 51 fits into 90 1 times, leaving a remainder of 39.
Record the quotient 1 as the next digit in the result. 
Result so far: 2972.9411
If we subtract 51 from 90, we get 39.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

The final result is 2972.9411 with a remainder of 0.00039.