We divide 151977 by 20
Let's see how many times 20 fits into 151977.

Step 1:
When dividing 1 by 20, we get 0 with a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Fetch the next digit (5) from the dividend, attach it to 1 and continue: 15 / 20

On to step 2:
The number 20 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
Deduct 0 from 15 and we're left with 15.
Grab the next digit (1) from the dividend, add it to 15, then carry on: 151 / 20

Step 3:
If we divide 151 by 20, we get 7 and a remainder of 11.
Use 7 as the next digit of our solution. 
Result so far: 7.0
If we take 140 away from 151, we end up with 11.
Include the next digit (9) from the dividend after 11, then repeat: 119 / 20

Advancing to step 4:
20 goes into 119 5 times with a remainder of 19.
Put 5 as the next digit of the answer. 
Result so far: 75.0
If we take 100 away from 119, we end up with 19.
Append the next digit (7) from the dividend to 19 and continue with: 197 / 20

Let's proceed to step 5:
20 can be fit into 197 9 times, resulting in a remainder of 17.
Put 9 as the next digit of the answer. 
Result so far: 759.0
The remainder is 17 after subtracting 180 from 197.
Take the next digit (7) from the dividend and append it to 17, then repeat: 177 / 20

Moving on to step 6:
When dividing 177 by 20, we get 8 with a remainder of 17.
Use 8 as the next digit of our solution. 
Result so far: 7598.0
If we subtract 160 from 177, we get 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Let's proceed to step 7:
If we divide 170 by 20, we get 8 and a remainder of 10.
The next digit of our result is 8. 
Result so far: 7598.8
Subtracting 160 from 170 leaves us with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Moving on to step 8:
20 goes into 100 5 times with a remainder of 0.
Put 5 as the next digit of the answer. 
Result so far: 7598.85
Subtracting 100 from 100 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Step 9:
When dividing 0 by 20, we get 0 with a remainder of 0.
The next digit of our result is 0. 
Result so far: 7598.85
If we take 0 away from 0, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

On to step 10:
20 can be fit into 0 0 times, resulting in a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 7598.85
If we subtract 0 from 0, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

After the division, we end up with 7598.85 and a remainder of 0.0.