73770837 divided by 515 
The aim is to understand the frequency of 515 in 73770837.

Step 1:
If we divide 7 by 515, we get 0 and a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 7, we get 7.
Grab the next digit (3) from the dividend, add it to 7, then carry on: 73 / 515

Step 2:
The number 515 fits into 73 0 times, leaving a remainder of 73.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 73, we get 73.
Grab the next digit (7) from the dividend, add it to 73, then carry on: 737 / 515

Let's proceed to step 3:
If we divide 737 by 515, we get 1 and a remainder of 222.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Subtract 515 from 737 to get 222.
Append the next digit (7) from the dividend to 222 and continue with: 2227 / 515

Let's proceed to step 4:
515 goes into 2227 4 times with a remainder of 167.
Write down 4 as next digit of the result. 
Result so far: 14.0
Subtracting 2060 from 2227 leaves us with 167.
Take the next digit (0) from the dividend and append it to 167, then repeat: 1670 / 515

Moving on to step 5:
The number 515 fits into 1670 3 times, leaving a remainder of 125.
Use 3 as the next digit of our solution. 
Result so far: 143.0
If we subtract 1545 from 1670, we get 125.
Take the next digit (8) from the dividend and append it to 125, then repeat: 1258 / 515

Advancing to step 6:
The number 515 fits into 1258 2 times, leaving a remainder of 228.
Use 2 as the next digit of our solution. 
Result so far: 1432.0
The remainder is 228 after subtracting 1030 from 1258.
Bring next digit (3) of the dividend behind the 228 and repeat the process: 2283 / 515

Going ahead to step 7:
515 can be fit into 2283 4 times, resulting in a remainder of 223.
Record the quotient 4 as the next digit in the result. 
Result so far: 14324.0
If we subtract 2060 from 2283, we get 223.
Bring next digit (7) of the dividend behind the 223 and repeat the process: 2237 / 515

Going ahead to step 8:
When dividing 2237 by 515, we get 4 with a remainder of 177.
Use 4 as the next digit of our solution. 
Result so far: 143244.0
If we subtract 2060 from 2237, we get 177.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1770, and continue the process.

Advancing to step 9:
515 can be fit into 1770 3 times, resulting in a remainder of 225.
The next digit of our result is 3. 
Result so far: 143244.3
Subtracting 1545 from 1770 leaves us with 225.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2250, and continue the process.

On to step 10:
515 can be fit into 2250 4 times, resulting in a remainder of 190.
The number 4 becomes the next digit in our result. 
Result so far: 143244.34
Deduct 2060 from 2250 and we're left with 190.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1900, and continue the process.

Going ahead to step 11:
If we divide 1900 by 515, we get 3 and a remainder of 355.
Use 3 as the next digit of our solution. 
Result so far: 143244.343
Deduct 1545 from 1900 and we're left with 355.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3550, and continue the process.

Going ahead to step 12:
If we divide 3550 by 515, we get 6 and a remainder of 460.
Put 6 as the next digit of the answer. 
Result so far: 143244.3436
Subtracting 3090 from 3550 leaves us with 460.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4600, and continue the process.

Going ahead to step 13:
If we divide 4600 by 515, we get 8 and a remainder of 480.
Record the quotient 8 as the next digit in the result. 
Result so far: 143244.34368
Deduct 4120 from 4600 and we're left with 480.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4800, and continue the process.

Let's proceed to step 14:
When dividing 4800 by 515, we get 9 with a remainder of 165.
The next digit of our result is 9. 
Result so far: 143244.343689
The remainder is 165 after subtracting 4635 from 4800.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1650, and continue the process.

Let's proceed to step 15:
515 can be fit into 1650 3 times, resulting in a remainder of 105.
Put 3 as the next digit of the answer. 
Result so far: 143244.3436893
If we subtract 1545 from 1650, we 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.

Going ahead to step 16:
515 can be fit into 1050 2 times, resulting in a remainder of 20.
Use 2 as the next digit of our solution. 
Result so far: 143244.34368932
Subtract 1030 from 1050 to get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

The final outcome is 143244.34368932, with a leftover of 2e-08.